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WO2018016780A1 - Calcium compound-containing high-early strength mixture for cement concrete and production method therefor - Google Patents

Calcium compound-containing high-early strength mixture for cement concrete and production method therefor Download PDF

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Publication number
WO2018016780A1
WO2018016780A1 PCT/KR2017/007260 KR2017007260W WO2018016780A1 WO 2018016780 A1 WO2018016780 A1 WO 2018016780A1 KR 2017007260 W KR2017007260 W KR 2017007260W WO 2018016780 A1 WO2018016780 A1 WO 2018016780A1
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Prior art keywords
weight
parts
cement concrete
crude steel
calcium
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Ceased
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PCT/KR2017/007260
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French (fr)
Korean (ko)
Inventor
이용진
남흥식
노재국
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Aezis Co Ltd
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Aezis Co Ltd
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Publication of WO2018016780A1 publication Critical patent/WO2018016780A1/en
Anticipated expiration legal-status Critical
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
    • C04B22/06—Oxides, Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/045—Alkali-metal containing silicates, e.g. petalite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08—Flue dust, i.e. fly ash
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/141—Slags
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/146—Silica fume
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
    • C04B22/06—Oxides, Hydroxides
    • C04B22/062—Oxides, Hydroxides of the alkali or alkaline-earth metals
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
    • C04B24/121—Amines, polyamines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present invention relates to a crude steel mixture for cement concrete, and more particularly, to a crude steel mixture for cement concrete, which can produce a high early strength while using less cement than conventional cement by adding a crude steel mixture containing a calcium compound to the cement concrete mixture. It is about.
  • Korean Patent No. 10-120942 discloses a method of adjusting the strength by making the submixture concrete.
  • this has a problem in that the construction cost increases significantly with the increase in the material cost and the increase in the amount of additional aggregates, etc. according to the increase in the amount of cement.
  • Korean Patent No. 10-615826 discloses a coagulation-promoting admixture composition and an early strength-expressing concrete composition containing the same.
  • Such a concrete composition has a relatively low cost increase factor and can be easily applied.
  • the composition of the admixture is high, there is a high possibility of a change in physical properties, a performance deterioration, and a change in concrete properties (air volume, slump) and the supplier.
  • quality control is not easy in the field because of quality fluctuations.
  • the present invention has been made to improve the above problems, to provide a crude steel mixture for cement concrete that can maintain the early strength of the concrete even if the cement content, including calcium oxide, calcium hydroxide, calcium carbonate, etc.
  • the cement content including calcium oxide, calcium hydroxide, calcium carbonate, etc.
  • Another object of the present invention is to provide a method for producing the crude steel mixture for cement concrete.
  • a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof,
  • 0.1 to 200 parts by weight preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight, even more preferably 0.1 to 200 parts by weight of a compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof 30 parts by weight,
  • dispersant 1 to 50 parts by weight of dispersant, preferably 5 to 30 parts by weight, and
  • 0.1 to 10 parts by weight preferably 0.5 to 10 parts by weight, more preferably 1 to 10 parts by weight, and more preferably 3 to 8 parts by weight, per 100 parts by weight of cement of cement concrete, to be coarse to the cement concrete. It is characterized by giving.
  • a hydration accelerator selected from the group consisting of acetates, formates, nitrates, nitrites, sulfates, thiosulfates, carbonates, chlorides, halides, alkanolamines, iron chlorides, calcium aluminate silicates, and mixtures of alkali or alkaline earth metals, Preferably an alkali metal or alkaline earth metal nitrate, more preferably 1 to 50 parts by weight, preferably 5 to 30 parts by weight of calcium nitrate may be further included.
  • It may further comprise 10 to 100 parts by weight, preferably 20 to 70 parts by weight of a silica compound selected from the group consisting of fly ash, bottom ash, silica fume, silica, silicate, water glass, slag and mixtures thereof.
  • a silica compound selected from the group consisting of fly ash, bottom ash, silica fume, silica, silicate, water glass, slag and mixtures thereof.
  • the calcium silicate hydrate may further comprise 0.1 to 20 parts by weight.
  • the average particle diameter of the calcium compound may be 0.01 to 100 ⁇ m, preferably 0.01 to 50 ⁇ m, more preferably 0.01 to 30 ⁇ m.
  • the average particle diameter of the cement may be 0.01 to 100 ⁇ m, preferably 0.01 to 50 ⁇ m, more preferably 0.01 to 30 ⁇ m.
  • the average particle diameter of the silica compound may be 0.01 to 100 ⁇ m, preferably 0.01 to 50 ⁇ m, more preferably 0.01 to 30 ⁇ m.
  • the solid content of the crude steel mixture for cement concrete is 10 to 80% by weight, preferably 20 to 70% by weight, more preferably 30 to 60% by weight, more preferably 40 to 55% by weight, even more preferred Preferably from 45 to 55% by weight.
  • a humectant may be further included.
  • the thickener may further comprise 0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight.
  • Antifoaming agent may further comprise 0.001 to 5 parts by weight, preferably 0.1 to 5 parts by weight.
  • the viscosity of the crude steel mixture for cement concrete may be 100 to 3000 cPs.
  • the annual viscosity change of the crude steel mixture for cement concrete may be 0 to 1000 cPs.
  • the pH of the crude steel mixture for cement concrete may be 10 to 14.
  • 0.1 to 200 parts by weight preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight, even more preferably 0.1 to 200 parts by weight of a compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof 30 parts by weight,
  • dispersant 1 to 50 parts by weight of dispersant, preferably 5 to 30 parts by weight, and
  • Preparing a subject by mixing 50 to 600 parts by weight of water, preferably 150 to 450 parts by weight of water;
  • Preparing an adjuvant by mixing 1 to 50 parts by weight of water, preferably 10 to 50 parts by weight of water;
  • a compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof, a calcium compound, a dispersant and water and then a compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures and Grinding the calcium compound to an average particle diameter of 0.01 to 100 ⁇ m may further include.
  • the method may further comprise maintaining the mixture of the subject and the adjuvant at 5-100 ° C., preferably 60-80 ° C., for 0.5-24 hours, preferably 0.5-12 hours.
  • the mixing of the step (C) may be a dropwise addition of the subject to the supplement, or a dropping aid to the subject.
  • a hydration accelerator selected from the group consisting of acetates, formates, nitrates, nitrites, sulfates, thiosulfates, carbonates, chlorides, halides, alkanolamines, iron chlorides, calcium aluminate silicates, and mixtures of alkali or alkaline earth metals, Preferably an alkali metal or alkaline earth metal nitrate, more preferably 1 to 50 parts by weight, preferably 5 to 30 parts by weight of calcium nitrate may be further included.
  • It may further comprise 10 to 100 parts by weight, preferably 20 to 70 parts by weight of a silica compound selected from the group consisting of fly ash, bottom ash, silica fume, silica, silicate, water glass, slag and mixtures thereof.
  • a silica compound selected from the group consisting of fly ash, bottom ash, silica fume, silica, silicate, water glass, slag and mixtures thereof.
  • the calcium silicate hydrate may further comprise 0.1 to 20 parts by weight.
  • the cement can also be ground together, the average particle diameter of the cement after the grinding is 0.01 to 100 ⁇ m, It may be preferably 0.01 to 50 ⁇ m, more preferably 0.01 to 30 ⁇ m.
  • the silica compound when the calcium compound is pulverized, may also be pulverized together, and the average particle diameter of the silica compound after the pulverization is 0.01 to 100. ⁇ m, preferably 0.01 to 50 ⁇ m, more preferably 0.01 to 30 ⁇ m.
  • the solid content of the crude steel mixture for cement concrete is 10 to 80% by weight, preferably 20 to 70% by weight, more preferably 30 to 60% by weight, more preferably 40 to 55% by weight, even more preferred Preferably from 45 to 55% by weight.
  • a humectant may be further included.
  • the thickener may further comprise 0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight.
  • Antifoaming agent may further comprise 0.001 to 5 parts by weight, preferably 0.1 to 5 parts by weight.
  • the crude steel mixture for cement concrete of the present invention is characterized in that produced by the above method.
  • the present invention corresponds to the recycling of industrial by-products using calcium oxide, calcium hydroxide, calcium carbonate, etc., and can reduce the content of cement, thereby reducing costs and saving energy, and reducing the generation of carbon dioxide to reduce environmental pollution. It helps.
  • the present invention can be expressed in the early strength of the concrete even in the low cement content by using the crude steel mixture, can be expected to improve the work efficiency, such as shortening the construction period, generated by the use of recycled aggregates such as industrial by-products It can solve the problem of deterioration of concrete.
  • the crude steel mixture for cement concrete is a compound selected from the group consisting of calcium compounds, silicon, aluminum, iron, magnesium, oxides and mixtures selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof , Hydroxides of alkali or alkaline earth metals, triethanolamine or mixtures thereof, dispersants, and water.
  • the crude steel mixture for cement concrete contains 100 parts by weight of a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof, and selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof.
  • a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof, and selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof.
  • 0.1 to 200 parts by weight of the compound preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight, even more preferably 0.1 to 30 parts by weight, the hydroxide of the alkali metal or alkaline earth metal, triethanolamine Or a mixture thereof, preferably 0.5 to 30 parts by weight, preferably 2 to 20 parts by weight of sodium hydroxide.
  • the crude steel mixture for cement concrete of the present invention is 0.1 to 10 parts by weight, preferably 0.5 to 10 parts by weight, more preferably 1 to 10 parts by weight, even more preferably 3 to 8 parts by weight of cement of cement concrete Mixing parts by weight imparts roughness to the cement concrete.
  • the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof activates a base during the coagulation and curing of cement to promote the formation of calcium silicate hydrate.
  • calcium oxide absorbs moisture and carbon dioxide and decomposes into calcium hydroxide and calcium carbonate.
  • the main feature of the present invention is to provide a crude steel mixture using inexpensive raw materials.
  • the calcium compound is low in purity and necessarily contains oxides of metals such as silicon, aluminum, iron, magnesium, and the like, and the content of these oxides is 0.1 to 200 parts by weight, preferably 0.1 to 100 parts by weight of the calcium compound. To 100 parts by weight, more preferably 0.1 to 50 parts by weight, even more preferably 0.1 to 30 parts by weight.
  • the content of the oxide is less than 0.1 parts by weight, it is not a raw material intended for the present invention because it is a high-purity raw material of high purity, not the low-cost raw materials mentioned above, and if the content is more than 200 parts by weight, the crude steel mixture is not manufactured and exhibits performance This is not done properly.
  • Hydroxide, triethanolamine, or mixtures of the alkali metal or alkaline earth metal, which is one of the main components constituting the crude steel mixture of the present invention, provide a basic environment necessary for condensation and curing of cement.
  • the content of these basic substances may be 0.5 to 30 parts by weight, preferably 2 to 20 parts by weight, per 100 parts by weight of the calcium compound. If the content of the basic material is less than 0.5 parts by weight, the production rate of the crude steel mixture of the present invention is too low to take too long time to produce, on the contrary, if it exceeds 30 parts by weight, it may be advantageous for the development of early strength, alkali aggregate reaction of concrete This can affect the workability and harden too quickly, resulting in poor workability, such as on-site casting.
  • the dispersant inhibits intergranulation of calcium compounds, metal oxides, basic materials, etc. constituting the crude steel mixture of the present invention, and allows the particles to be spaced apart from each other by using electrostatic or physical repulsive force. Through this, even strength is expressed in the entire area of the cement concrete, and it is possible to secure sufficient workability while reducing the amount of water to be blended.
  • the content of such a dispersant may be 1 to 50 parts by weight, preferably 5 to 30 parts by weight, per 100 parts by weight of the calcium compound. If the content of the dispersant is less than 1 part by weight, the viscosity of the crude steel mixture becomes too high, making it difficult to use.
  • the water content may be 50 to 600 parts by weight, preferably 150 to 450 parts by weight per 100 parts by weight of the calcium compound. If the content of the water is less than 50 parts by weight, the viscosity of the crude steel mixture is too high, making it difficult to use, on the contrary, if the content exceeds 600 parts by weight, not only does the increase in logistics costs but also phase separation between components of the crude steel mixture.
  • the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound, alkali metal or alkaline earth metal acetate, formate, nitrate, nitrite, sulfate, thiosulfate, carbonate, chloride, halide, alkanolamine, Hydration reaction accelerator selected from the group consisting of iron chloride, calcium aluminate silicate, and mixtures thereof, preferably nitrates of alkali or alkaline earth metals, more preferably 1 to 50 parts by weight of calcium nitrate, preferably 5 to 30 parts by weight. It may further comprise. When the content of the hydration reaction accelerator is within the above range, it is possible to secure an appropriate hydration reaction rate, thereby obtaining the desired early strength.
  • the hydration accelerator weakens the coating around the calcium silicate hydrate to promote the crystal growth and to facilitate the coagulation and curing of the cement. These compounds are activated by the aforementioned calcium compounds to participate in the reaction.
  • Such hydration reaction accelerators include sodium acetate, calcium acetate, potassium acetate, acetate, alkalolamine, formic acid, calcium formate, and formate, and the inorganic components include calcium nitrate, calcium nitrite, calcium chloride, calcium bromide, Calcium iodide, soluble calcium salt, iron chloride, magnesium chloride, sodium chloride, sulfate, potassium hydroxide, carbonate, thiosulfate, calcium aluminate silicate and the like.
  • the crude steel mixture for cement concrete of the present invention may further include 0.01 to 5 parts by weight of cement per 100 parts by weight of the calcium compound so that the crude steel performance can be expressed more quickly.
  • content of the said cement is in the said range, it becomes possible to express roughening performance more quickly as mentioned above.
  • the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound, fly ash, bottom ash, silica ash, silica fume, silica, in order to activate the base in the cement condensation and curing process to promote the formation of calcium silicate hydrate It may further comprise 10 to 100 parts by weight, preferably 20 to 70 parts by weight of the silica compound selected from the group consisting of silicate, water glass, slag and mixtures thereof. In addition, it may further comprise 0.1 to 20 parts by weight of calcium silicate hydrate per 100 parts by weight of the calcium compound for acting as a coagulation nucleus during the coagulation and curing of cement. When the content of the silica compound and the calcium silicate hydrate is within the above range, the reaction rate of the concrete can be properly maintained to obtain the desired early strength.
  • the average particle diameter of the calcium compound, cement and silica compound may be independently from each other 0.01 to 100 ⁇ m, preferably 0.01 to 50 ⁇ m, more preferably 0.01 to 30 ⁇ m. These particles have a fine size as described above, which leads to an increase in filling rate, which results in not only the early strength but also the compressive strength of the final concrete structure (mould).
  • the average particle diameter is within the above range, high strength can be expressed due to a high filling rate effect, and it is possible to prevent agglomeration and phase separation due to static electricity, thereby ensuring stability of the product.
  • the solid content of the crude steel mixture for cement concrete is 10 to 80% by weight, preferably 20 to 70% by weight, more preferably 30 to 60% by weight, more preferably 40 to 55% by weight, even more preferably May be 45 to 55% by weight. It is preferable that the solid content be within the above range while lowering the logistics cost while expressing the desired roughing performance.
  • the crude steel mixture for cement concrete may further comprise 0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight of wetting agent per 100 parts by weight of the calcium compound.
  • the wetting agent is to reduce the surface tension of the particles to spread the water on the surface when the content is within the above range can ensure the appropriate range of steelmaking performance considering the economics.
  • the crude steel mixture for cement concrete may further comprise 0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight of a thickener per 100 parts by weight of the calcium compound.
  • a thickener per 100 parts by weight of the calcium compound.
  • the crude steel mixture for cement concrete of the present invention may further comprise 0.001 to 5 parts by weight, preferably 0.1 to 5 parts by weight of the antifoaming agent per 100 parts by weight of the calcium compound.
  • the content of the antifoaming agent is within the above range, it is possible to suppress the decrease in strength due to bubbles in the cement concrete while taking into account economics.
  • the antifoaming agent is used to remove bubbles generated when mixing the components constituting the crude steel mixture for cement concrete of the present invention.
  • bubbles occur in the crude steel mixture for cement concrete, there may be a problem that the strength of the concrete is reduced.
  • the viscosity of the crude steel mixture for cement concrete may be 100 to 3000 cPs.
  • the viscosity is within the above range, it is possible to smoothly work while suppressing phase separation of the constituents, thereby ensuring an appropriate level of workability.
  • the annual viscosity change of the crude steel mixture for cement concrete may be 0 to 1000 cPs.
  • the annual viscosity change amount is less than 1000 cPs can be secured in the appropriate range of commerciality.
  • the pH of the crude steel mixture for cement concrete may be 10 to 14.
  • the pH is within the above range it is possible to express a high-speed hydration reaction is preferred.
  • the crude steel mixture of the present invention mixes 0.1 to 10 parts by weight, preferably 0.5 to 10 parts by weight, more preferably 1 to 10 parts by weight, and even more preferably 3 to 8 parts by weight per 100 parts by weight of cement of cement concrete. It is characterized by. If the amount of the cement is less than 0.1 parts by weight per 100 parts by weight of cement, the strength of the concrete is insignificant. On the contrary, if the amount exceeds 10 parts by weight, problems such as cracking and bleeding may occur due to the heat generation of the concrete.
  • A 100 parts by weight of a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof; 0.1 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight, even more preferably 0.1 to 200 parts by weight of a compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof 30 parts by weight; 1 to 50 parts by weight, preferably 5 to 30 parts by weight of a dispersant; And 50 to 600 parts by weight of water, preferably 150 to 450 parts by weight of water, to prepare a main body;
  • the method for producing a crude steel mixture for cement concrete comprises first silicon, aluminum, iron, magnesium, oxides and mixtures of 100 parts by weight of a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof.
  • a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof.
  • 100 parts by weight of the calcium compound selected from and 0.1 to 200 parts by weight preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight of the compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof. And even more preferably 0.1 to 30 parts by weight.
  • the process starts with the preparation of the subject matter by mixing 1-50 parts by weight, preferably 5-30 parts by weight, and 50-600 parts by weight of water, preferably 150-450 parts by weight of the dispersant.
  • the calcium compound may further include grinding the calcium compound to an average particle diameter of 0.01 to 100 ⁇ m, preferably 0.01 to 50 ⁇ m, more preferably 0.01 to 30 ⁇ m.
  • hydroxides of alkali or alkaline earth metals, triethanolamine or mixtures thereof preferably 0.5 to 30 parts by weight of sodium hydroxide, preferably 2 to 20 parts by weight, water 1 To 50 parts by weight, preferably 10 to 50 parts by weight of the adjuvant is prepared.
  • the mixing may be dropwise addition of the topical to the adjuvant, or dropping adjuvant to the topical.
  • the step of maintaining the mixture of the subject and the adjuvant at 5 to 100 ° C., preferably 60 to 80 ° C. for 0.5 to 24 hours, preferably 0.5 to 12 hours It may include.
  • the holding temperature and the holding time are within the above range, the reaction can be sufficiently progressed while preventing the vaporization of water and maintaining the economic efficiency, thereby securing the performance and stability of the crude steel mixture of the present invention.
  • the method of manufacturing a crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound, alkali metal or alkaline earth metal acetate, formate, nitrate, nitrite, sulfate, thiosulfate, carbonate, chloride, halogen Hydration reaction accelerator selected from the group consisting of cargoes, alkanolamines, iron chlorides, calcium aluminate silicates, and mixtures thereof, preferably nitrates of alkali or alkaline earth metals, more preferably 1 to 50 parts by weight of calcium nitrate, preferably May further comprise 5 to 30 parts by weight.
  • halogen Hydration reaction accelerator selected from the group consisting of cargoes, alkanolamines, iron chlorides, calcium aluminate silicates, and mixtures thereof, preferably nitrates of alkali or alkaline earth metals, more preferably 1 to 50 parts by weight of calcium nitrate, preferably May further comprise 5 to 30 parts
  • the method of manufacturing a crude steel mixture for cement concrete of the present invention may further include 0.01 to 5 parts by weight of cement per 100 parts by weight of the calcium compound in the subject.
  • the manufacturing method of the crude steel mixture for cement concrete of the present invention is silica selected from the group consisting of fly ash, bottom ash, silica fume, silica, silicate, water glass, slag and mixtures thereof per 100 parts by weight of the calcium compound on the subject.
  • the compound may further comprise 10 to 100 parts by weight, preferably 20 to 70 parts by weight.
  • the method of manufacturing a crude steel mixture for cement concrete of the present invention may further comprise 0.1 to 20 parts by weight of calcium silicate hydrate per 100 parts by weight of the calcium compound in the subject.
  • the method of manufacturing a crude steel mixture for cement concrete of the present invention during the production step of the main subject, when the calcium compound is pulverized with the cement, the average particle diameter of the cement after the pulverization is 0.01 to 100 ⁇ m, It may be preferably 0.01 to 50 ⁇ m, more preferably 0.01 to 30 ⁇ m.
  • the silica compound may also be pulverized together, and the average particle diameter of the silica compound after the pulverization is 0.01 to It may be 100 ⁇ m, preferably 0.01 to 50 ⁇ m, more preferably 0.01 to 30 ⁇ m.
  • the method of manufacturing a crude steel mixture for cement concrete of the present invention may further comprise 0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight, of wetting agent per 100 parts by weight of the calcium compound.
  • the method for producing a crude steel mixture for cement concrete of the present invention may further comprise 0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight, of thickener per 100 parts by weight of the calcium compound.
  • the method of manufacturing a crude steel mixture for cement concrete of the present invention may further include 0.001 to 5 parts by weight, preferably 0.1 to 5 parts by weight, of the antifoaming agent per 100 parts by weight of the calcium compound.
  • the crude steel mixture for cement concrete of the present invention is characterized in that produced by the above method.
  • a main body To 200 g of water, 150 g of hydrated lime, 20 g of calcium nitrate, and 7 g of a dispersant (EGIS, Korea) were added and ground to an average particle diameter of 5 mu m to prepare a main body. Auxiliaries were prepared by adding 15 g sodium hydroxide to 15 g water separately from the subject. The subject was placed in a flask, and the auxiliary agent was added dropwise, followed by stirring at 70 ° C. for 8 hours to prepare a crude steel mixture for cement concrete of the present invention.
  • EGIS dispersant
  • a main body 150 g of hydrated lime and 7 g of a dispersant (EGIS, Korea) were added and ground to an average particle diameter of 5 mu m to prepare a main body.
  • Auxiliaries were prepared by adding 15 g sodium hydroxide to 50 g water separately from the subject.
  • 20 g of calcium nitrate was added to 30 g of water, and ground to an average particle diameter of 5 ⁇ m to prepare an aqueous calcium nitrate solution.
  • the subject was placed in a flask, and the auxiliary agent and the calcium nitrate aqueous solution were added dropwise, followed by stirring at 70 ° C. for 8 hours to prepare a crude steel mixture for cement concrete of the present invention.
  • Cement mortar was prepared in the mixing ratio of Table 1 below. (Supervisor: Aegis, Korea)
  • the compressive strength of the cement mortar prepared in Preparation Examples 1 to 6 was measured according to the addition of the crude steel mixture. The measurement was carried out after curing for 24 hours at a temperature of 15 °C, 60% relative humidity, the results are shown in Table 2.
  • the compressive strength of the cement mortar prepared in Preparation Examples 1 to 6 was measured according to the curing temperature of the crude steel mixture. Measurement was made after curing for 24 hours at 60% relative humidity, the results are shown in Table 3.
  • Test Examples 1 and 2 showed that when the amount of cement was the same, a larger early compressive strength value was obtained by adding the crude steel mixture of the present invention.
  • Cement concrete was prepared in the mixing ratio of Table 4 below. (Supervisor: Aegis, Korea)
  • Test Example 3 showed that when the amount of cement was the same, a larger early compressive strength value was obtained by adding the crude steel mixture of the present invention.

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Abstract

The present invention relates to a high-early strength mixture for cement concrete and a production method therefor, the high-early strength mixture containing a calcium compound, a metal oxide, a hydroxide of an alkali metal, etc., a dispersant and water. Further, by containing a calcium compound, etc., the high-early strength mixture for cement concrete, according to the present invention, is useful for industrial by-product recycling, is economical and may enable saving energy by enabling cement content to be reduced, and is environmentally friendly by enabling the mitigation of environmental pollution by reducing carbon dioxide production. By being added to a cement concrete mixture, the high-early strength mixture has the effect of enabling the cement concrete to exhibit a higher early strength.

Description

칼슘 화합물을 포함하는 시멘트 콘크리트용 조강혼합물 및 이의 제조방법A crude steel mixture for cement concrete containing calcium compound and its manufacturing method

본 발명은 시멘트 콘크리트용 조강혼합물에 관한 것으로서, 보다 상세하게는 시멘트 콘크리트 혼합물에 칼슘 화합물을 포함하는 조강혼합물을 첨가하여 시멘트를 기존보다 적게 사용하면서도 높은 조기강도를 낼 수 있는 시멘트 콘크리트용 조강혼합물에 관한 것이다.The present invention relates to a crude steel mixture for cement concrete, and more particularly, to a crude steel mixture for cement concrete, which can produce a high early strength while using less cement than conventional cement by adding a crude steel mixture containing a calcium compound to the cement concrete mixture. It is about.

최근 시멘트의 생산량이 감소함에 따라 시멘트의 가격이 상승하는 한편, 플라이애쉬, 고로슬래그 등의 산업부산물은 연간 2,000 만 톤 이상 발생되고 있다. 따라서 콘크리트를 제조할 시에 중요한 재료가 되는 시멘트의 비율을 줄이고 시멘트의 대체제로 가능한 값싼 산업부산물의 사용이 요구되고 있다. 이러한 산업부산물의 발생량은 해마다 증가하는 추세에 있어 시멘트의 대체제로 더욱 바람직하다. 그러나 산업부산물을 적용할 경우에 콘크리트의 조기강도가 감소한다는 문제점이 발생된다. 따라서 이를 해결한 조강첨가제의 필요성이 점차 대두되고 있다.As the production of cement has recently decreased, the price of cement has risen, while industrial by-products such as fly ash and blast furnace slag have been generated more than 20 million tons per year. Therefore, there is a need to reduce the proportion of cement, which is an important material in the production of concrete, and to use inexpensive industrial by-products as a substitute for cement. Since the amount of industrial by-products is increasing year by year, it is more preferable as a substitute for cement. However, when industrial by-products are applied, there is a problem that the early strength of concrete decreases. Therefore, the necessity of crude steel additives to solve this problem is gradually emerging.

종래 시멘트 콘크리트의 강도를 조기에 발현할 수 있는 몇 가지 방법들이 제시되고 있으며, 각각의 장단점에 따라 선택적으로 활용하여 사용되고 있다.Several methods for expressing the strength of cement concrete early have been proposed, and have been selectively used according to their advantages and disadvantages.

국내특허 제 10-120942호는 부배합 콘크리트로 제조하여 강도를 상향 조정하는 방법을 개시하고 있다. 그러나, 이는 시멘트량의 증가에 따른 재료비 상승 및 부가적인 골재 등의 사용량 증가에 따라 공사비가 큰 폭으로 증가하는 문제점이 있다.Korean Patent No. 10-120942 discloses a method of adjusting the strength by making the submixture concrete. However, this has a problem in that the construction cost increases significantly with the increase in the material cost and the increase in the amount of additional aggregates, etc. according to the increase in the amount of cement.

국내특허 제 10-615826호는 응결촉진형 혼화제 조성물 및 이를 함유하는 조기강도발현형 콘크리트 조성물을 개시하고 있다. 이러한 콘크리트 조성물은 단가 상승요인이 비교적 낮고, 적용성도 편할 수 있으나, 혼화제의 조성물이 많기 때문에 물성변화가 생길 우려가 많으며, 성능의 저하가 발생할 수 있고, 콘크리트 물성변화(공기량, 슬럼프) 및 납품처 간의 품질 변동이 있어 현장에서 품질관리가 용이하지 않다는 단점이 있다.Korean Patent No. 10-615826 discloses a coagulation-promoting admixture composition and an early strength-expressing concrete composition containing the same. Such a concrete composition has a relatively low cost increase factor and can be easily applied. However, since the composition of the admixture is high, there is a high possibility of a change in physical properties, a performance deterioration, and a change in concrete properties (air volume, slump) and the supplier. There is a disadvantage that quality control is not easy in the field because of quality fluctuations.

본 발명은 상기와 같은 문제점들을 개선하기 위하여 안출된 것으로서, 산화칼슘, 수산화칼슘, 탄산칼슘 등을 포함하여 시멘트의 함량을 낮춤에도 콘크리트의 조기강도를 높게 유지할 수 있는 시멘트 콘크리트용 조강혼합물을 제공하는 것을 목적으로 한다.The present invention has been made to improve the above problems, to provide a crude steel mixture for cement concrete that can maintain the early strength of the concrete even if the cement content, including calcium oxide, calcium hydroxide, calcium carbonate, etc. The purpose.

또한, 본 발명은 상기 시멘트 콘크리트용 조강 혼합물의 제조방법을 제공하는 것을 또 다른 목적으로 한다.In addition, another object of the present invention is to provide a method for producing the crude steel mixture for cement concrete.

본 발명의 시멘트 콘크리트용 조강혼합물은 상술한 바와 같은 목적을 달성하기 위하여, In order to achieve the object as described above, the crude steel mixture for cement concrete of the present invention,

산화칼슘, 수산화칼슘, 탄산칼슘 및 그 혼합물로 이루어진 군에서 선택된 칼슘 화합물 100 중량부, 100 parts by weight of a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof,

규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 구성된 군에서 선택된 화합물 0.1 내지 200 중량부, 바람직하게는 0.1 내지 100 중량부, 보다 바람직하게는 0.1 내지 50 중량부, 보다 더 바람직하게는 0.1 내지 30 중량부,0.1 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight, even more preferably 0.1 to 200 parts by weight of a compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof 30 parts by weight,

알칼리금속 또는 알칼리토금속의 수산화물, 트리에탄올아민 또는 그 혼합물, 바람직하게는 수산화나트륨 0.5 내지 30 중량부, 바람직하게는 2 내지 20 중량부, Hydroxides of alkali metals or alkaline earth metals, triethanolamine or mixtures thereof, preferably 0.5 to 30 parts by weight of sodium hydroxide, preferably 2 to 20 parts by weight,

분산제 1 내지 50 중량부, 바람직하게는 5 내지 30 중량부, 및 1 to 50 parts by weight of dispersant, preferably 5 to 30 parts by weight, and

물 50 내지 600 중량부, 바람직하게는 150 내지 450 중량부를 포함하고, 50 to 600 parts by weight of water, preferably 150 to 450 parts by weight,

시멘트 콘크리트의 시멘트 100 중량부 당 0.1 내지 10 중량부, 바람직하게는 0.5 내지 10 중량부, 보다 바람직하게는 1 내지 10 중량부, 더욱 바람직하게는 3 내지 8 중량부를 혼합하여 상기 시멘트 콘크리트에 조강성을 부여하는 것을 특징으로 한다.0.1 to 10 parts by weight, preferably 0.5 to 10 parts by weight, more preferably 1 to 10 parts by weight, and more preferably 3 to 8 parts by weight, per 100 parts by weight of cement of cement concrete, to be coarse to the cement concrete. It is characterized by giving.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, In addition, the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound,

알칼리금속 또는 알칼리토금속의 초산염, 포름산염, 질산염, 아질산염, 황산염, 티오황산염, 탄산염, 염화물, 할로겐화물, 알칸올아민, 염화철, 칼슘알루미네이트실리케이트, 및 그 혼합물로 이루어진 군에서 선택된 수화반응 촉진제, 바람직하게는 알칼리금속 또는 알칼리토금속의 질산염, 보다 바람직하게는 질산칼슘 1 내지 50 중량부, 바람직하게는 5 내지 30 중량부를 추가로 포함할 수 있다.A hydration accelerator selected from the group consisting of acetates, formates, nitrates, nitrites, sulfates, thiosulfates, carbonates, chlorides, halides, alkanolamines, iron chlorides, calcium aluminate silicates, and mixtures of alkali or alkaline earth metals, Preferably an alkali metal or alkaline earth metal nitrate, more preferably 1 to 50 parts by weight, preferably 5 to 30 parts by weight of calcium nitrate may be further included.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, In addition, the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound,

시멘트 0.01 내지 5 중량부를 추가로 포함할 수 있다.It may further comprise 0.01 to 5 parts by weight of cement.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, In addition, the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound,

플라이애쉬, 바텀애쉬, 실리카퓸, 실리카, 규산염, 물유리, 슬래그 및 그 혼합물로 이루어진 군에서 선택된 실리카 화합물 10 내지 100 중량부, 바람직하게는 20 내지 70 중량부를 추가로 포함할 수 있다.It may further comprise 10 to 100 parts by weight, preferably 20 to 70 parts by weight of a silica compound selected from the group consisting of fly ash, bottom ash, silica fume, silica, silicate, water glass, slag and mixtures thereof.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, In addition, the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound,

칼슘실리케이트하이드레이트 0.1 내지 20 중량부를 추가로 포함할 수 있다.The calcium silicate hydrate may further comprise 0.1 to 20 parts by weight.

또한, 상기 칼슘 화합물의 평균입경은 0.01 내지 100 ㎛, 바람직하게는 0.01 내지 50 ㎛, 보다 바람직하게는 0.01 내지 30 ㎛일 수 있다.In addition, the average particle diameter of the calcium compound may be 0.01 to 100 ㎛, preferably 0.01 to 50 ㎛, more preferably 0.01 to 30 ㎛.

또한, 상기 시멘트의 평균입경은 0.01 내지 100 ㎛, 바람직하게는 0.01 내지 50 ㎛, 보다 바람직하게는 0.01 내지 30 ㎛일 수 있다.In addition, the average particle diameter of the cement may be 0.01 to 100 ㎛, preferably 0.01 to 50 ㎛, more preferably 0.01 to 30 ㎛.

또한, 상기 실리카 화합물의 평균입경은 0.01 내지 100 ㎛, 바람직하게는 0.01 내지 50 ㎛, 보다 바람직하게는 0.01 내지 30 ㎛일 수 있다.In addition, the average particle diameter of the silica compound may be 0.01 to 100 ㎛, preferably 0.01 to 50 ㎛, more preferably 0.01 to 30 ㎛.

또한, 상기 시멘트 콘크리트용 조강혼합물의 고형분 함량은 10 내지 80 무게%, 바람직하게는 20 내지 70 무게%, 보다 바람직하게는 30 내지 60 무게%, 더욱 바람직하게는 40 내지 55 무게%, 더욱 더 바람직하게는 45 내지 55 무게%일 수 있다.In addition, the solid content of the crude steel mixture for cement concrete is 10 to 80% by weight, preferably 20 to 70% by weight, more preferably 30 to 60% by weight, more preferably 40 to 55% by weight, even more preferred Preferably from 45 to 55% by weight.

또한, 상기 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, In addition, the crude steel mixture for cement concrete per 100 parts by weight of the calcium compound,

습윤제 0.001 내지 5 중량부, 바람직하게는 0.01 내지 1 중량부를 추가로 포함할 수 있다.0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight of a humectant may be further included.

또한, 상기 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, In addition, the crude steel mixture for cement concrete per 100 parts by weight of the calcium compound,

증점제 0.001 내지 5 중량부, 바람직하게는 0.01 내지 1 중량부를 추가로 포함할 수 있다.The thickener may further comprise 0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, In addition, the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound,

소포제 0.001 내지 5 중량부, 바람직하게는 0.1 내지 5 중량부를 추가로 포함할 수 있다.Antifoaming agent may further comprise 0.001 to 5 parts by weight, preferably 0.1 to 5 parts by weight.

또한, 상기 시멘트 콘크리트용 조강혼합물의 점도는 100 내지 3000 cPs일 수 있다.In addition, the viscosity of the crude steel mixture for cement concrete may be 100 to 3000 cPs.

또한, 상기 시멘트 콘크리트용 조강혼합물의 연간 점도 변화량은 0 내지 1000 cPs일 수 있다.In addition, the annual viscosity change of the crude steel mixture for cement concrete may be 0 to 1000 cPs.

또한, 상기 시멘트 콘크리트용 조강혼합물의 pH는 10 내지 14일 수 있다.In addition, the pH of the crude steel mixture for cement concrete may be 10 to 14.

한편, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 On the other hand, the method of manufacturing a crude steel mixture for cement concrete of the present invention

(A) 산화칼슘, 수산화칼슘, 탄산칼슘 및 그 혼합물로 이루어진 군에서 선택된 칼슘 화합물 100 중량부, (A) 100 parts by weight of a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof,

규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 구성된 군에서 선택된 화합물 0.1 내지 200 중량부, 바람직하게는 0.1 내지 100 중량부, 보다 바람직하게는 0.1 내지 50 중량부, 보다 더 바람직하게는 0.1 내지 30 중량부,0.1 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight, even more preferably 0.1 to 200 parts by weight of a compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof 30 parts by weight,

분산제 1 내지 50 중량부, 바람직하게는 5 내지 30 중량부, 및 1 to 50 parts by weight of dispersant, preferably 5 to 30 parts by weight, and

물 50 내지 600 중량부, 바람직하게는 150 내지 450 중량부를 혼합하여 주제를 제조하는 단계; Preparing a subject by mixing 50 to 600 parts by weight of water, preferably 150 to 450 parts by weight of water;

(B) 상기 칼슘 화합물 100 중량부 당, (B) per 100 parts by weight of the calcium compound,

알칼리금속 또는 알칼리토금속의 수산화물, 트리에탄올아민 또는 그 혼합물, 바람직하게는 수산화나트륨 0.5 내지 30 중량부, 바람직하게는 2 내지 20 중량부, Hydroxides of alkali metals or alkaline earth metals, triethanolamine or mixtures thereof, preferably 0.5 to 30 parts by weight of sodium hydroxide, preferably 2 to 20 parts by weight,

물 1 내지 50 중량부, 바람직하게는 10 내지 50 중량부를 혼합하여 보조제를 제조하는 단계; 및 Preparing an adjuvant by mixing 1 to 50 parts by weight of water, preferably 10 to 50 parts by weight of water; And

(C) 상기 주제와 보조제를 혼합하는 단계를 포함하는 것을 특징으로 한다.(C) mixing the subject and the adjuvant.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 In addition, the manufacturing method of the crude steel mixture for cement concrete of the present invention

단계 (A) 중, During step (A),

상기 규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 구성된 군에서 선택된 화합물, 칼슘 화합물, 분산제 및 물을 혼합한 후 상기 규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 구성된 군에서 선택된 화합물 및 칼슘 화합물을 평균입경 0.01 내지 100 ㎛가 되도록 분쇄하는 단계를 추가로 포함할 수 있다.A compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof, a calcium compound, a dispersant and water and then a compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures and Grinding the calcium compound to an average particle diameter of 0.01 to 100 ㎛ may further include.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 In addition, the manufacturing method of the crude steel mixture for cement concrete of the present invention

단계 (C) 이후에, After step (C),

상기 주제와 보조제의 혼합물을 5 내지 100 ℃, 바람직하게는 60 내지 80 ℃에서 0.5 내지 24 시간, 바람직하게는 0.5 내지 12 시간 동안 유지하는 단계를 추가로 포함할 수 있다.The method may further comprise maintaining the mixture of the subject and the adjuvant at 5-100 ° C., preferably 60-80 ° C., for 0.5-24 hours, preferably 0.5-12 hours.

또한, 상기 단계 (C)의 혼합은 주제를 보조제로 적가하거나, 보조제를 주제로 적가하는 것일 수 있다.In addition, the mixing of the step (C) may be a dropwise addition of the subject to the supplement, or a dropping aid to the subject.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, In addition, the manufacturing method of the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound,

알칼리금속 또는 알칼리토금속의 초산염, 포름산염, 질산염, 아질산염, 황산염, 티오황산염, 탄산염, 염화물, 할로겐화물, 알칸올아민, 염화철, 칼슘알루미네이트실리케이트, 및 그 혼합물로 이루어진 군에서 선택된 수화반응 촉진제, 바람직하게는 알칼리금속 또는 알칼리토금속의 질산염, 보다 바람직하게는 질산칼슘 1 내지 50 중량부, 바람직하게는 5 내지 30 중량부를 추가로 포함할 수 있다.A hydration accelerator selected from the group consisting of acetates, formates, nitrates, nitrites, sulfates, thiosulfates, carbonates, chlorides, halides, alkanolamines, iron chlorides, calcium aluminate silicates, and mixtures of alkali or alkaline earth metals, Preferably an alkali metal or alkaline earth metal nitrate, more preferably 1 to 50 parts by weight, preferably 5 to 30 parts by weight of calcium nitrate may be further included.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, In addition, the manufacturing method of the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound,

시멘트 0.01 내지 5 중량부를 추가로 포함할 수 있다.It may further comprise 0.01 to 5 parts by weight of cement.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, In addition, the manufacturing method of the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound,

플라이애쉬, 바텀애쉬, 실리카퓸, 실리카, 규산염, 물유리, 슬래그 및 그 혼합물로 이루어진 군에서 선택된 실리카 화합물 10 내지 100 중량부, 바람직하게는 20 내지 70 중량부를 추가로 포함할 수 있다.It may further comprise 10 to 100 parts by weight, preferably 20 to 70 parts by weight of a silica compound selected from the group consisting of fly ash, bottom ash, silica fume, silica, silicate, water glass, slag and mixtures thereof.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, In addition, the manufacturing method of the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound,

칼슘실리케이트하이드레이트 0.1 내지 20 중량부를 추가로 포함할 수 있다.The calcium silicate hydrate may further comprise 0.1 to 20 parts by weight.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 단계 (A) 도중에, 상기 칼슘 화합물을 분쇄할 때 상기 시멘트 역시 함께 분쇄할 수 있고, 상기 분쇄 후의 상기 시멘트의 평균입경은 0.01 내지 100 ㎛, 바람직하게는 0.01 내지 50 ㎛, 보다 바람직하게는 0.01 내지 30 ㎛일 수 있다.In addition, the method of manufacturing a crude steel mixture for cement concrete of the present invention, during the step (A), when the calcium compound is ground, the cement can also be ground together, the average particle diameter of the cement after the grinding is 0.01 to 100 ㎛, It may be preferably 0.01 to 50 μm, more preferably 0.01 to 30 μm.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 단계 (A) 도중에, 상기 칼슘 화합물을 분쇄할 때 상기 실리카 화합물 역시 함께 분쇄할 수 있고, 상기 분쇄 후의 상기 실리카 화합물의 평균입경은 0.01 내지 100 ㎛, 바람직하게는 0.01 내지 50 ㎛, 보다 바람직하게는 0.01 내지 30 ㎛일 수 있다.In addition, the method of manufacturing a crude steel mixture for cement concrete of the present invention, during the step (A), when the calcium compound is pulverized, the silica compound may also be pulverized together, and the average particle diameter of the silica compound after the pulverization is 0.01 to 100. Μm, preferably 0.01 to 50 μm, more preferably 0.01 to 30 μm.

또한, 상기 시멘트 콘크리트용 조강혼합물의 고형분 함량은 10 내지 80 무게%, 바람직하게는 20 내지 70 무게%, 보다 바람직하게는 30 내지 60 무게%, 더욱 바람직하게는 40 내지 55 무게%, 더욱 더 바람직하게는 45 내지 55 무게%일 수 있다.In addition, the solid content of the crude steel mixture for cement concrete is 10 to 80% by weight, preferably 20 to 70% by weight, more preferably 30 to 60% by weight, more preferably 40 to 55% by weight, even more preferred Preferably from 45 to 55% by weight.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, In addition, the manufacturing method of the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound,

습윤제 0.001 내지 5 중량부, 바람직하게는 0.01 내지 1 중량부를 추가로 포함할 수 있다.0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight of a humectant may be further included.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, In addition, the manufacturing method of the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound,

증점제 0.001 내지 5 중량부, 바람직하게는 0.01 내지 1 중량부를 추가로 포함할 수 있다.The thickener may further comprise 0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, In addition, the manufacturing method of the crude steel mixture for cement concrete of the present invention per 100 parts by weight of the calcium compound,

소포제 0.001 내지 5 중량부, 바람직하게는 0.1 내지 5 중량부를 추가로 포함할 수 있다.Antifoaming agent may further comprise 0.001 to 5 parts by weight, preferably 0.1 to 5 parts by weight.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물은 상기 방법에 의해 제조된 것을 특징으로 한다.In addition, the crude steel mixture for cement concrete of the present invention is characterized in that produced by the above method.

본 발명은 산화칼슘, 수산화칼슘, 탄산칼슘 등을 사용하여 산업부산물의 재활용에 해당하며, 시멘트의 함량을 낮출 수 있어 비용절감 및 에너지 절약의 효과가 있고, 이산화탄소의 발생을 저감시켜 환경 오염을 감소시키는데에 도움이 된다. 또한 본 발명은 조강혼합물의 사용으로 낮은 시멘트의 함량에도 콘크리트의 조기강도가 높게 발현될 수 있고, 공사기간 단축 등의 작업효율성을 향상을 기대할 수 있으며, 산업부산물과 같은 재생골재의 사용으로 발생되는 콘크리트 품질저하 문제를 해결할 수 있다.The present invention corresponds to the recycling of industrial by-products using calcium oxide, calcium hydroxide, calcium carbonate, etc., and can reduce the content of cement, thereby reducing costs and saving energy, and reducing the generation of carbon dioxide to reduce environmental pollution. It helps. In addition, the present invention can be expressed in the early strength of the concrete even in the low cement content by using the crude steel mixture, can be expected to improve the work efficiency, such as shortening the construction period, generated by the use of recycled aggregates such as industrial by-products It can solve the problem of deterioration of concrete.

이하, 본 발명의 바람직한 실시예에 대해서 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail.

이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 안 되며, 본 명세서에 기재된 내용들이 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로 본 출원시점에 있어서 이들은 대체할 수 있는 다양한 변형예들이 있을 수 있음을 이해하여야 한다. 또한, 본 발명을 설명함에 있어서, 관련된 공지 기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.Prior to this, terms or words used in the present specification and claims should not be construed as being limited to ordinary or dictionary meanings, and the contents described herein do not represent all of the technical ideas of the present invention. It should be understood that there may be various modifications that can be substituted for them. In addition, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

본 발명의 바람직한 실시예에 따른 시멘트 콘크리트용 조강혼합물은 산화칼슘, 수산화칼슘, 탄산칼슘 및 그 혼합물로 이루어진 군에서 선택된 칼슘 화합물, 규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 구성된 군에서 선택된 화합물, 알칼리금속 또는 알칼리토금속의 수산화물, 트리에탄올아민 또는 그 혼합물, 분산제, 및 물을 포함한다.The crude steel mixture for cement concrete according to a preferred embodiment of the present invention is a compound selected from the group consisting of calcium compounds, silicon, aluminum, iron, magnesium, oxides and mixtures selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof , Hydroxides of alkali or alkaline earth metals, triethanolamine or mixtures thereof, dispersants, and water.

상기 시멘트 콘크리트용 조강혼합물은 상기 산화칼슘, 수산화칼슘, 탄산칼슘 및 그 혼합물로 이루어진 군에서 선택된 칼슘 화합물을 100 중량부 함유하며, 상기 규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 구성된 군에서 선택된 화합물 0.1 내지 200 중량부, 바람직하게는 0.1 내지 100 중량부, 보다 바람직하게는 0.1 내지 50 중량부, 보다 더 바람직하게는 0.1 내지 30 중량부를 함유하고, 상기 알칼리금속 또는 알칼리토금속의 수산화물, 트리에탄올아민 또는 그 혼합물, 바람직하게는 수산화나트륨 0.5 내지 30 중량부, 바람직하게는 2 내지 20 중량부를 함유한다. 그리고 상기 분산제 1 내지 50 중량부, 바람직하게는 5 내지 30 중량부를 함유하며, 상기 물은 50 내지 600 중량부, 바람직하게는 150 내지 450 중량부를 함유한다. 그리고 본 발명의 시멘트 콘크리트용 조강 혼합물은 시멘트 콘크리트의 시멘트 100 중량부 당 0.1 내지 10 중량부, 바람직하게는 0.5 내지 10 중량부, 보다 바람직하게는 1 내지 10 중량부, 더욱 바람직하게는 3 내지 8 중량부를 혼합하여 상기 시멘트 콘크리트에 조강성을 부여한다.The crude steel mixture for cement concrete contains 100 parts by weight of a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof, and selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof. 0.1 to 200 parts by weight of the compound, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight, even more preferably 0.1 to 30 parts by weight, the hydroxide of the alkali metal or alkaline earth metal, triethanolamine Or a mixture thereof, preferably 0.5 to 30 parts by weight, preferably 2 to 20 parts by weight of sodium hydroxide. And 1 to 50 parts by weight, preferably 5 to 30 parts by weight of the dispersant, and 50 to 600 parts by weight of water, preferably 150 to 450 parts by weight. And the crude steel mixture for cement concrete of the present invention is 0.1 to 10 parts by weight, preferably 0.5 to 10 parts by weight, more preferably 1 to 10 parts by weight, even more preferably 3 to 8 parts by weight of cement of cement concrete Mixing parts by weight imparts roughness to the cement concrete.

상기 산화칼슘, 수산화칼슘, 탄산칼슘 및 그 혼합물로 이루어진 군은 시멘트의 응결 및 경화 과정에서 염기를 활성화시켜 칼슘실리케이트하이드레이트의 형성을 촉진한다. 상기 군에서 산화칼슘은 수분과 이산화탄소를 흡수하여 수산화칼슘과 탄산칼슘으로 분해된다.The group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof activates a base during the coagulation and curing of cement to promote the formation of calcium silicate hydrate. In this group, calcium oxide absorbs moisture and carbon dioxide and decomposes into calcium hydroxide and calcium carbonate.

본 발명의 가장 주요한 특징은 저가의 원료를 이용하여 조강혼합물을 제공하는 것이다. 이 때문에 상기 칼슘 화합물은 순도가 낮아 필연적으로 규소, 알루미늄, 철, 마그네슘 등과 같은 금속의 산화물을 포함하고 있고, 이들 산화물의 함유량은 상기 칼슘 화합물 100 중량부 당 0.1 내지 200 중량부, 바람직하게는 0.1 내지 100 중량부, 보다 바람직하게는 0.1 내지 50 중량부, 보다 더 바람직하게는 0.1 내지 30 중량부일 수 있다. 상기 산화물의 함유량이 0.1 중량부 미만이면 상기에서 언급한 저가 원료가 아닌 높은 순도의 고가 원료이므로 본 발명에서 의도하는 원료가 아니고, 반대로 200 중량부를 초과하면 조강혼합물이 제조되지 않으며 제조된다고 하더라도 성능 발현이 제대로 이루어지지 않는다.The main feature of the present invention is to provide a crude steel mixture using inexpensive raw materials. For this reason, the calcium compound is low in purity and necessarily contains oxides of metals such as silicon, aluminum, iron, magnesium, and the like, and the content of these oxides is 0.1 to 200 parts by weight, preferably 0.1 to 100 parts by weight of the calcium compound. To 100 parts by weight, more preferably 0.1 to 50 parts by weight, even more preferably 0.1 to 30 parts by weight. If the content of the oxide is less than 0.1 parts by weight, it is not a raw material intended for the present invention because it is a high-purity raw material of high purity, not the low-cost raw materials mentioned above, and if the content is more than 200 parts by weight, the crude steel mixture is not manufactured and exhibits performance This is not done properly.

본 발명의 조강혼합물을 구성하는 주요성분 중 하나인 상기 알칼리금속 또는 알칼리토금속의 수산화물, 트리에탄올아민 또는 그 혼합물은 시멘트의 응결 및 경화에 필요한 염기성 환경을 제공한다. 이들 염기성 물질의 함유량은 상기 칼슘 화합물 100 중량부 당 0.5 내지 30 중량부, 바람직하게는 2 내지 20 중량부일 수 있다. 상기 염기성 물질의 함유량이 0.5 중량부 미만이면 본 발명 조강혼합물의 생성속도가 지나치게 낮아 제조에 너무 긴 시간이 소요되고, 반대로 30 중량부를 초과하면 조기 강도의 발현에는 유리할 수 있으나, 콘크리트의 알칼리 골재 반응에 영향을 줄 수 있으며, 지나치게 빠르게 굳어 현장 타설과 같은 작업성은 떨어지게 된다.Hydroxide, triethanolamine, or mixtures of the alkali metal or alkaline earth metal, which is one of the main components constituting the crude steel mixture of the present invention, provide a basic environment necessary for condensation and curing of cement. The content of these basic substances may be 0.5 to 30 parts by weight, preferably 2 to 20 parts by weight, per 100 parts by weight of the calcium compound. If the content of the basic material is less than 0.5 parts by weight, the production rate of the crude steel mixture of the present invention is too low to take too long time to produce, on the contrary, if it exceeds 30 parts by weight, it may be advantageous for the development of early strength, alkali aggregate reaction of concrete This can affect the workability and harden too quickly, resulting in poor workability, such as on-site casting.

상기 분산제는 본 발명의 조강혼합물을 구성하는 칼슘 화합물, 금속 산화물, 염기성 물질 등의 입자간 응집을 저해하고, 정전기적 또는 물리적 반발력을 이용하여 상기 입자들이 서로 이격되도록 한다. 이를 통해 시멘트 콘크리트의 전체 영역에서 고른 강도가 발현되고, 배합되는 물의 양을 적게 하면서도 충분한 작업성을 확보할 수 있게 된다. 이러한 분산제의 함유량은 상기 칼슘 화합물 100 중량부 당 1 내지 50 중량부, 바람직하게는 5 내지 30 중량부일 수 있다. 상기 분산제의 함유량이 1 중량부 미만이면 조강혼합물의 점도가 지나치게 높아져 제조도 사용도 어렵게 되고, 반대로 50 중량부를 초과하면 경제성이 떨어질 뿐만 아니라 조강혼합물의 구성성분끼리 상분리가 발생할 수 있다. 또한 기포발생으로 인한 강도 저하가 발생되어 이를 해결하기 위해 불필요한 소포제를 사용하는 경우가 발생되고, 이밖에 다량의 분산제로 인하여 콘크리트의 조기강도 저하 요인이 발생될 수 있다.The dispersant inhibits intergranulation of calcium compounds, metal oxides, basic materials, etc. constituting the crude steel mixture of the present invention, and allows the particles to be spaced apart from each other by using electrostatic or physical repulsive force. Through this, even strength is expressed in the entire area of the cement concrete, and it is possible to secure sufficient workability while reducing the amount of water to be blended. The content of such a dispersant may be 1 to 50 parts by weight, preferably 5 to 30 parts by weight, per 100 parts by weight of the calcium compound. If the content of the dispersant is less than 1 part by weight, the viscosity of the crude steel mixture becomes too high, making it difficult to use. On the contrary, if the content of the dispersant exceeds 50 parts by weight, economical efficiency may be lowered, and phase separation between components of the crude steel mixture may occur. In addition, a decrease in strength due to bubble generation occurs to use an unnecessary antifoaming agent to solve this problem, and in addition, a factor of early strength reduction of concrete may occur due to a large amount of dispersant.

그리고, 상기 물의 함유량은 상기 칼슘 화합물 100 중량부 당 50 내지 600 중량부, 바람직하게는 150 내지 450 중량부일 수 있다. 상기 물의 함유량이 50 중량부 미만이면 조강혼합물의 점도가 지나치게 높아져 제조도 사용도 어렵게 되고, 반대로 600 중량부를 초과하면 물류비용의 증가를 초래할 뿐만 아니라 조강혼합물의 구성성분끼리 상분리가 발생할 수 있다.And, the water content may be 50 to 600 parts by weight, preferably 150 to 450 parts by weight per 100 parts by weight of the calcium compound. If the content of the water is less than 50 parts by weight, the viscosity of the crude steel mixture is too high, making it difficult to use, on the contrary, if the content exceeds 600 parts by weight, not only does the increase in logistics costs but also phase separation between components of the crude steel mixture.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, 알칼리금속 또는 알칼리토금속의 초산염, 포름산염, 질산염, 아질산염, 황산염, 티오황산염, 탄산염, 염화물, 할로겐화물, 알칸올아민, 염화철, 칼슘알루미네이트실리케이트, 및 그 혼합물로 이루어진 군에서 선택된 수화반응 촉진제, 바람직하게는 알칼리금속 또는 알칼리토금속의 질산염, 보다 바람직하게는 질산칼슘 1 내지 50 중량부, 바람직하게는 5 내지 30 중량부를 추가로 포함할 수 있다. 상기 수화반응 촉진제의 함유량이 상기 범위 이내일 때 적절한 수화반응 속도를 확보할 수 있어 원하는 조기강도를 얻는 것이 가능하다. In addition, the crude steel mixture for cement concrete of the present invention, per 100 parts by weight of the calcium compound, alkali metal or alkaline earth metal acetate, formate, nitrate, nitrite, sulfate, thiosulfate, carbonate, chloride, halide, alkanolamine, Hydration reaction accelerator selected from the group consisting of iron chloride, calcium aluminate silicate, and mixtures thereof, preferably nitrates of alkali or alkaline earth metals, more preferably 1 to 50 parts by weight of calcium nitrate, preferably 5 to 30 parts by weight. It may further comprise. When the content of the hydration reaction accelerator is within the above range, it is possible to secure an appropriate hydration reaction rate, thereby obtaining the desired early strength.

상기 수화반응 촉진제는 칼슘실리케이트하이드레이트 주변의 피막을 약화시켜 그 결정 성장을 촉진하고 그 결과 시멘트의 응결 및 경화가 용이하게 진행되도록 한다. 이들 화합물은 전술한 칼슘 화합물에 의해 활성화되어 반응에 참여하게 된다. 이러한 수화반응 촉진제로는 유기성분으로 초산나트륨, 초산칼슘, 초산칼륨, 초산염, 알칼올아민, 포름산, 포름산칼슘, 포름산염 등이 있으며, 무기성분으로는 질산칼슘, 아질산칼슘, 염화칼슘, 브롬화칼슘, 요오드화칼슘, 가용성칼슘염, 염화철, 염화마그네슘, 염화나트륨, 황산염, 수산화칼륨, 탄산염, 티오황산염, 칼슘알루미네이트실리케이트 등이 있다. The hydration accelerator weakens the coating around the calcium silicate hydrate to promote the crystal growth and to facilitate the coagulation and curing of the cement. These compounds are activated by the aforementioned calcium compounds to participate in the reaction. Such hydration reaction accelerators include sodium acetate, calcium acetate, potassium acetate, acetate, alkalolamine, formic acid, calcium formate, and formate, and the inorganic components include calcium nitrate, calcium nitrite, calcium chloride, calcium bromide, Calcium iodide, soluble calcium salt, iron chloride, magnesium chloride, sodium chloride, sulfate, potassium hydroxide, carbonate, thiosulfate, calcium aluminate silicate and the like.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물은 보다 신속하게 조강성능이 발현될 수 있도록 상기 칼슘 화합물 100 중량부 당, 시멘트 0.01 내지 5 중량부를 추가로 포함할 수 있다. 상기 시멘트의 함유량이 상기 범위 이내일 때 전술한 바와 같이 보다 신속하게 조강성능을 발현시키는 것이 가능해진다.In addition, the crude steel mixture for cement concrete of the present invention may further include 0.01 to 5 parts by weight of cement per 100 parts by weight of the calcium compound so that the crude steel performance can be expressed more quickly. When content of the said cement is in the said range, it becomes possible to express roughening performance more quickly as mentioned above.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물은 시멘트의 응결 및 경화 과정에서 염기를 활성화시켜 칼슘실리케이트하이드레이트의 형성을 촉진하기 위하여 상기 칼슘 화합물 100 중량부 당, 플라이애쉬, 바텀애쉬, 실리카퓸, 실리카, 규산염, 물유리, 슬래그 및 그 혼합물로 이루어진 군에서 선택된 실리카 화합물 10 내지 100 중량부, 바람직하게는 20 내지 70 중량부를 추가로 포함할 수 있다. 또한, 시멘트의 응결 및 경화 과정에서 응결핵으로서의 작용을 위해 칼슘 화합물 100 중량부 당, 칼슘실리케이트하이드레이트 0.1 내지 20 중량부를 추가로 포함할 수 있다. 상기 실리카 화합물 및 칼슘실리케이트하이드레이트의 함유량이 상기 범위 이내일 때 콘크리트의 반응속도를 적절하게 유지할 수 있어 원하는 조기강도를 얻는 것이 가능하다. In addition, the crude steel mixture for cement concrete of the present invention, per 100 parts by weight of the calcium compound, fly ash, bottom ash, silica ash, silica fume, silica, in order to activate the base in the cement condensation and curing process to promote the formation of calcium silicate hydrate It may further comprise 10 to 100 parts by weight, preferably 20 to 70 parts by weight of the silica compound selected from the group consisting of silicate, water glass, slag and mixtures thereof. In addition, it may further comprise 0.1 to 20 parts by weight of calcium silicate hydrate per 100 parts by weight of the calcium compound for acting as a coagulation nucleus during the coagulation and curing of cement. When the content of the silica compound and the calcium silicate hydrate is within the above range, the reaction rate of the concrete can be properly maintained to obtain the desired early strength.

또한, 상기 칼슘 화합물, 시멘트 및 실리카 화합물의 평균입경은 서로 독립적으로 0.01 내지 100 ㎛, 바람직하게는 0.01 내지 50 ㎛, 보다 바람직하게는 0.01 내지 30 ㎛일 수 있다. 이들 입자들이 전술한 바와 같은 미세 크기를 가짐으로써 충진율이 증가하고, 그 결과 조기강도가 발현될 뿐만 아니라 최종 콘트리트 구조물(몰드)의 압축강도가 증가하게 된다. 상기 평균입경이 상기 범위 이내일 때 높은 충진율 효과로 인한 높은 강도발현이 가능하고, 정전기로 인한 뭉침현상 및 상분리를 방지할 수 있어 제품의 안정성을 확보할 수 있다. In addition, the average particle diameter of the calcium compound, cement and silica compound may be independently from each other 0.01 to 100 ㎛, preferably 0.01 to 50 ㎛, more preferably 0.01 to 30 ㎛. These particles have a fine size as described above, which leads to an increase in filling rate, which results in not only the early strength but also the compressive strength of the final concrete structure (mould). When the average particle diameter is within the above range, high strength can be expressed due to a high filling rate effect, and it is possible to prevent agglomeration and phase separation due to static electricity, thereby ensuring stability of the product.

또한 상기 시멘트 콘크리트용 조강혼합물의 고형분 함량은 10 내지 80 무게%, 바람직하게는 20 내지 70 무게%, 보다 바람직하게는 30 내지 60 무게%, 더욱 바람직하게는 40 내지 55 무게%, 더욱 더 바람직하게는 45 내지 55 무게%일 수 있다. 상기 고형분 함량이 상기 범위 이내인 것이 원하는 조강성능을 발현하면서도 물류비용을 낮출 수 있어 바람직하다.In addition, the solid content of the crude steel mixture for cement concrete is 10 to 80% by weight, preferably 20 to 70% by weight, more preferably 30 to 60% by weight, more preferably 40 to 55% by weight, even more preferably May be 45 to 55% by weight. It is preferable that the solid content be within the above range while lowering the logistics cost while expressing the desired roughing performance.

또한, 상기 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부당, 습윤제 0.001 내지 5 중량부, 바람직하게는 0.01 내지 1 중량부를 추가로 포함할 수 있다. 상기 습윤제는 입자의 표면장력을 감소시켜 물이 표면에 퍼지게 하는 것으로 그 함유량이 상기 범위 이내일 때 경제성까지 고려한 적절한 범위의 조강성능을 확보할 수 있다. In addition, the crude steel mixture for cement concrete may further comprise 0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight of wetting agent per 100 parts by weight of the calcium compound. The wetting agent is to reduce the surface tension of the particles to spread the water on the surface when the content is within the above range can ensure the appropriate range of steelmaking performance considering the economics.

또한, 상기 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, 증점제 0.001 내지 5 중량부, 바람직하게는 0.01 내지 1 중량부를 추가로 포함할 수 있다. 상기 증점제의 함유량이 상기 범위 이내일 때 구성성분의 상분리를 억제하면서도 원활한 작업을 가능케 하는 적절한 점도를 확보할 수 있다. In addition, the crude steel mixture for cement concrete may further comprise 0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight of a thickener per 100 parts by weight of the calcium compound. When the content of the thickener is within the above range, it is possible to secure an appropriate viscosity that enables smooth operation while suppressing phase separation of the components.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, 소포제 0.001 내지 5 중량부, 바람직하게는 0.1 내지 5 중량부를 추가로 포함할 수 있다. 상기 소포제의 함유량이 상기 범위 이내일 때 경제성까지 고려하면서 시멘트 콘크리트 내의 기포로 인한 강도 저하를 억제할 수 있다. In addition, the crude steel mixture for cement concrete of the present invention may further comprise 0.001 to 5 parts by weight, preferably 0.1 to 5 parts by weight of the antifoaming agent per 100 parts by weight of the calcium compound. When the content of the antifoaming agent is within the above range, it is possible to suppress the decrease in strength due to bubbles in the cement concrete while taking into account economics.

상기 소포제는 본 발명의 시멘트 콘크리트용 조강혼합물을 구성하는 성분들을를 혼합하였을 때 발생하는 기포를 제거하기 위해 사용한다. 상기 시멘트 콘크리트용 조강혼합물에 기포가 발생할 경우, 콘크리트의 강도가 감소되는 문제가 생길 수 있다. The antifoaming agent is used to remove bubbles generated when mixing the components constituting the crude steel mixture for cement concrete of the present invention. When bubbles occur in the crude steel mixture for cement concrete, there may be a problem that the strength of the concrete is reduced.

또한, 상기 시멘트 콘크리트용 조강혼합물의 점도는 100 내지 3000 cPs일 수 있다. 상기 점도가 상기 범위 이내일 때 구성성분의 상분리를 억제하면서도 원활한 작업이 가능해져 적절한 수준의 작업성을 확보할 수 있다. In addition, the viscosity of the crude steel mixture for cement concrete may be 100 to 3000 cPs. When the viscosity is within the above range, it is possible to smoothly work while suppressing phase separation of the constituents, thereby ensuring an appropriate level of workability.

또한, 상기 시멘트 콘크리트용 조강혼합물의 연간 점도 변화량은 0 내지 1000 cPs일 수 있다. 상기 연간 점도 변화량이 1000 cPs 이하일 때 적절한 범위의 상품성을 확보할 수 있다.In addition, the annual viscosity change of the crude steel mixture for cement concrete may be 0 to 1000 cPs. When the annual viscosity change amount is less than 1000 cPs can be secured in the appropriate range of commerciality.

또한, 상기 시멘트 콘크리트용 조강혼합물의 pH는 10 내지 14 일 수 있다. 상기 pH가 상기 범위 이내일 때 빠른 속도의 수화반응을 발현시킬 수 있어 바람직하다. In addition, the pH of the crude steel mixture for cement concrete may be 10 to 14. When the pH is within the above range it is possible to express a high-speed hydration reaction is preferred.

본 발명의 조강혼합물은 시멘트 콘크리트의 시멘트 100 중량부 당 0.1 내지 10 중량부, 바람직하게는 0.5 내지 10 중량부, 보다 바람직하게는 1 내지 10 중량부, 더욱 바람직하게는 3 내지 8 중량부를 혼합하는 것을 특징으로 한다. 시멘트 콘크리트에 배합되는 양이 시멘트 100 중량부 당 0.1 중량부 미만이면 콘크리트의 강도 발현이 미미하며, 반대로 10 중량부를 초과하면 콘크리트의 발열로 인해 균열, 블리딩 등의 문제가 발생할 수 있다. The crude steel mixture of the present invention mixes 0.1 to 10 parts by weight, preferably 0.5 to 10 parts by weight, more preferably 1 to 10 parts by weight, and even more preferably 3 to 8 parts by weight per 100 parts by weight of cement of cement concrete. It is characterized by. If the amount of the cement is less than 0.1 parts by weight per 100 parts by weight of cement, the strength of the concrete is insignificant. On the contrary, if the amount exceeds 10 parts by weight, problems such as cracking and bleeding may occur due to the heat generation of the concrete.

한편, 본 발명의 바람직한 실시예에 따른 시멘트 콘크리트용 조강혼합물의 제조방법은 On the other hand, the manufacturing method of the crude steel mixture for cement concrete according to a preferred embodiment of the present invention

(A) 산화칼슘, 수산화칼슘, 탄산칼슘 및 그 혼합물로 이루어진 군에서 선택된 칼슘 화합물 100 중량부; 규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 구성된 군에서 선택된 화합물 0.1 내지 200 중량부, 바람직하게는 0.1 내지 100 중량부, 보다 바람직하게는 0.1 내지 50 중량부, 보다 더 바람직하게는 0.1 내지 30 중량부; 분산제 1 내지 50 중량부, 바람직하게는 5 내지 30 중량부; 및 물 50 내지 600 중량부, 바람직하게는 150 내지 450 중량부를 혼합하여 주제를 제조하는 단계;(A) 100 parts by weight of a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof; 0.1 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight, even more preferably 0.1 to 200 parts by weight of a compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof 30 parts by weight; 1 to 50 parts by weight, preferably 5 to 30 parts by weight of a dispersant; And 50 to 600 parts by weight of water, preferably 150 to 450 parts by weight of water, to prepare a main body;

(B) 상기 칼슘 화합물 100 중량부 당, 알칼리금속 또는 알칼리토금속의 수산화물, 트리에탄올아민 또는 그 혼합물, 바람직하게는 수산화나트륨 0.5 내지 30 중량부, 바람직하게는 2 내지 20 중량부; 물 1 내지 50 중량부, 바람직하게는 10 내지 50 중량부를 혼합하여 보조제를 제조하는 단계; 및(B) 0.5 to 30 parts by weight of an alkali metal or alkaline earth metal hydroxide, triethanolamine or a mixture thereof, preferably sodium hydroxide per 100 parts by weight of the calcium compound, preferably 2 to 20 parts by weight; Preparing an adjuvant by mixing 1 to 50 parts by weight of water, preferably 10 to 50 parts by weight of water; And

(C) 상기 주제와 보조제를 혼합하는 단계를 포함한다.(C) mixing the subject and the adjuvant.

본 발명에 따른 시멘트 콘크리트용 조강혼합물의 제조방법은 먼저 산화칼슘, 수산화칼슘, 탄산칼슘 및 그 혼합물로 이루어진 군에서 선택된 칼슘 화합물 100 중량부에 규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 이루어진 군에서 선택된 칼슘 화합물 100 중량부, 그리고 규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 구성된 군에서 선택된 화합물 0.1 내지 200 중량부, 바람직하게는 0.1 내지 100 중량부, 보다 바람직하게는 0.1 내지 50 중량부, 보다 더 바람직하게는 0.1 내지 30 중량부를 혼합한다. 상기 혼합물에 분산제 1 내지 50 중량부, 바람직하게는 5 내지 30 중량부, 및 물 50 내지 600 중량부, 바람직하게는 150 내지 450 중량부를 혼합하여 주제를 제조하는 단계로부터 시작된다.The method for producing a crude steel mixture for cement concrete according to the present invention comprises first silicon, aluminum, iron, magnesium, oxides and mixtures of 100 parts by weight of a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof. 100 parts by weight of the calcium compound selected from and 0.1 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight of the compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof. And even more preferably 0.1 to 30 parts by weight. The process starts with the preparation of the subject matter by mixing 1-50 parts by weight, preferably 5-30 parts by weight, and 50-600 parts by weight of water, preferably 150-450 parts by weight of the dispersant.

상기 주제를 제조하는 단계 도중에, 상기 칼슘 화합물을 평균입경 0.01 내지 100 ㎛, 바람직하게는 0.01 내지 50 ㎛, 보다 바람직하게는 0.01 내지 30 ㎛가 되도록 분쇄하는 단계를 추가로 포함할 수 있다.During the preparation of the subject, the calcium compound may further include grinding the calcium compound to an average particle diameter of 0.01 to 100 μm, preferably 0.01 to 50 μm, more preferably 0.01 to 30 μm.

상기 주제의 제조와 별도로 상기 칼슘 화합물 100 중량부 당, 알칼리금속 또는 알칼리토금속의 수산화물, 트리에탄올아민 또는 그 혼합물, 바람직하게는 수산화나트륨 0.5 내지 30 중량부, 바람직하게는 2 내지 20 중량부, 물 1 내지 50 중량부, 바람직하게는 10 내지 50 중량부를 혼합하여 보조제를 제조한다. Apart from the preparation of the subject, per 100 parts by weight of the calcium compound, hydroxides of alkali or alkaline earth metals, triethanolamine or mixtures thereof, preferably 0.5 to 30 parts by weight of sodium hydroxide, preferably 2 to 20 parts by weight, water 1 To 50 parts by weight, preferably 10 to 50 parts by weight of the adjuvant is prepared.

상기 주제와 보조제가 제조되면 이들을 혼합한다. 상기 혼합은 주제를 보조제로 적가하거나, 보조제를 주제로 적가하는 것일 수 있다.Once the subjects and auxiliaries have been prepared, they are mixed. The mixing may be dropwise addition of the topical to the adjuvant, or dropping adjuvant to the topical.

상기 주제와 보조제를 혼합하는 단계 이후에, 상기 주제와 보조제의 혼합물을 5 내지 100 ℃, 바람직하게는 60 내지 80 ℃에서 0.5 내지 24 시간, 바람직하게는 0.5 내지 12 시간 동안 유지하는 단계를 추가로 포함할 수 있다. 상기 유지온도 및 유지시간이 상기 범위 이내일 때 물의 기화를 방지하고 경제성을 유지하면서도 반응을 충분히 진행시킬 수 있어 본 발명 조강혼합물의 성능 및 안정성을 확보할 수 있다. After mixing the subject and the adjuvant, the step of maintaining the mixture of the subject and the adjuvant at 5 to 100 ° C., preferably 60 to 80 ° C. for 0.5 to 24 hours, preferably 0.5 to 12 hours It may include. When the holding temperature and the holding time are within the above range, the reaction can be sufficiently progressed while preventing the vaporization of water and maintaining the economic efficiency, thereby securing the performance and stability of the crude steel mixture of the present invention.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, 알칼리금속 또는 알칼리토금속의 초산염, 포름산염, 질산염, 아질산염, 황산염, 티오황산염, 탄산염, 염화물, 할로겐화물, 알칸올아민, 염화철, 칼슘알루미네이트실리케이트, 및 그 혼합물로 이루어진 군에서 선택된 수화반응 촉진제, 바람직하게는 알칼리금속 또는 알칼리토금속의 질산염, 보다 바람직하게는 질산칼슘 1 내지 50 중량부, 바람직하게는 5 내지 30 중량부를 추가로 포함할 수 있다.In addition, the method of manufacturing a crude steel mixture for cement concrete of the present invention, per 100 parts by weight of the calcium compound, alkali metal or alkaline earth metal acetate, formate, nitrate, nitrite, sulfate, thiosulfate, carbonate, chloride, halogen Hydration reaction accelerator selected from the group consisting of cargoes, alkanolamines, iron chlorides, calcium aluminate silicates, and mixtures thereof, preferably nitrates of alkali or alkaline earth metals, more preferably 1 to 50 parts by weight of calcium nitrate, preferably May further comprise 5 to 30 parts by weight.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, 시멘트 0.01 내지 5 중량부를 추가로 포함할 수 있다. In addition, the method of manufacturing a crude steel mixture for cement concrete of the present invention may further include 0.01 to 5 parts by weight of cement per 100 parts by weight of the calcium compound in the subject.

또한, 본발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, 플라이애쉬, 바텀애쉬, 실리카퓸, 실리카, 규산염, 물유리, 슬래그 및 그 혼합물로 이루어진 군에서 선택된 실리카 화합물 10 내지 100 중량부, 바람직하게는 20 내지 70 중량부를 추가로 포함할 수 있다.In addition, the manufacturing method of the crude steel mixture for cement concrete of the present invention is silica selected from the group consisting of fly ash, bottom ash, silica fume, silica, silicate, water glass, slag and mixtures thereof per 100 parts by weight of the calcium compound on the subject. The compound may further comprise 10 to 100 parts by weight, preferably 20 to 70 parts by weight.

또한, 본발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, 칼슘실리케이트하이드레이트 0.1 내지 20 중량부를 추가로 포함할 수 있다.In addition, the method of manufacturing a crude steel mixture for cement concrete of the present invention may further comprise 0.1 to 20 parts by weight of calcium silicate hydrate per 100 parts by weight of the calcium compound in the subject.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 주제의 제조단계 도중에, 상기 칼슘 화합물을 분쇄할 때 상기 시멘트 역시 함께 분쇄할 수 있고, 상기 분쇄 후의 상기 시멘트의 평균입경은 0.01 내지 100 ㎛, 바람직하게는 0.01 내지 50 ㎛, 보다 바람직하게는 0.01 내지 30 ㎛일 수 있다.In addition, the method of manufacturing a crude steel mixture for cement concrete of the present invention, during the production step of the main subject, when the calcium compound is pulverized with the cement, the average particle diameter of the cement after the pulverization is 0.01 to 100 ㎛, It may be preferably 0.01 to 50 μm, more preferably 0.01 to 30 μm.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제의 제조단계 도중에, 상기 칼슘 화합물을 분쇄할 때 상기 실리카 화합물 역시 함께 분쇄할 수 있고, 상기 분쇄 후의 상기 실리카 화합물의 평균입경은 0.01 내지 100 ㎛, 바람직하게는 0.01 내지 50 ㎛, 보다 바람직하게는 0.01 내지 30 ㎛일 수 있다.In addition, the method of manufacturing a crude steel mixture for cement concrete of the present invention, during the manufacturing step of the main subject, when the calcium compound is pulverized, the silica compound may also be pulverized together, and the average particle diameter of the silica compound after the pulverization is 0.01 to It may be 100 μm, preferably 0.01 to 50 μm, more preferably 0.01 to 30 μm.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, 습윤제 0.001 내지 5 중량부, 바람직하게는 0.01 내지 1 중량부를 추가로 포함할 수 있다. In addition, the method of manufacturing a crude steel mixture for cement concrete of the present invention may further comprise 0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight, of wetting agent per 100 parts by weight of the calcium compound.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, 증점제 0.001 내지 5 중량부, 바람직하게는 0.01 내지 1 중량부를 추가로 포함할 수 있다.In addition, the method for producing a crude steel mixture for cement concrete of the present invention may further comprise 0.001 to 5 parts by weight, preferably 0.01 to 1 part by weight, of thickener per 100 parts by weight of the calcium compound.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물의 제조방법은 상기 주제에 상기 칼슘 화합물 100 중량부 당, 소포제 0.001 내지 5 중량부, 바람직하게는 0.1 내지 5 중량부를 추가로 포함할 수 있다.In addition, the method of manufacturing a crude steel mixture for cement concrete of the present invention may further include 0.001 to 5 parts by weight, preferably 0.1 to 5 parts by weight, of the antifoaming agent per 100 parts by weight of the calcium compound.

또한, 본 발명의 시멘트 콘크리트용 조강혼합물은 상기 방법에 의해 제조된 것을 특징으로 한다.In addition, the crude steel mixture for cement concrete of the present invention is characterized in that produced by the above method.

이하 본 발명을 실시예를 들어 상세히 설명하고자 하나, 하기 실시예는 본 발명을 예시하기 위한 것일 뿐 이로 인해 본 발명의 범위가 제한되는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to Examples, but the following Examples are only intended to illustrate the present invention, which is not intended to limit the scope of the present invention.

실시예Example

실시예 1 : 조강혼합물의 제조 (1)Example 1: Preparation of crude steel mixture (1)

물 200 g에 소석회 150 g, 질산칼슘 20 g, 및 분산제 (이지스, 한국) 7 g을 첨가하고, 평균입경 5 ㎛로 분쇄하여 주제를 제조하였다. 상기 주제와 별도로 물 15 g에 수산화나트륨 15 g을 첨가하여 보조제를 제조하였다. 상기 주제를 플라스크에 넣고 상기 보조제를 적가한 후 70 ℃에서 교반하며 8 시간 동안 유지시켜 본 발명의 시멘트 콘크리트용 조강혼합물을 제조하였다.To 200 g of water, 150 g of hydrated lime, 20 g of calcium nitrate, and 7 g of a dispersant (EGIS, Korea) were added and ground to an average particle diameter of 5 mu m to prepare a main body. Auxiliaries were prepared by adding 15 g sodium hydroxide to 15 g water separately from the subject. The subject was placed in a flask, and the auxiliary agent was added dropwise, followed by stirring at 70 ° C. for 8 hours to prepare a crude steel mixture for cement concrete of the present invention.

실시예 2 : 조강혼합물의 제조 (2)Example 2 Preparation of Crude Steel Mixtures (2)

실시예 1과 동일한 과정을 거치되, 상기 주제 제조시 상기 분산제는 적가하여 본 발명의 시멘트 콘크리트용 조강혼합물을 제조하였다.The same process as in Example 1, except that the dispersing agent was added dropwise to prepare the crude steel mixture for cement concrete of the present invention.

실시예 3 : 조강혼합물의 제조 (3)Example 3: Preparation of crude steel mixture (3)

물 200 g에 소석회 150 g 및 분산제 (이지스, 한국) 7 g을 첨가하고, 평균입경 5 ㎛로 분쇄하여 주제를 제조하였다. 상기 주제와 별도로 물 50 g에 수산화나트륨 15 g을 첨가하여 보조제를 제조하였다. 그리고, 물 30 g에 질산칼슘 20 g을 첨가하고, 평균입경 5 ㎛로 분쇄하여 질산칼슘 수용액을 제조하였다. 상기 주제를 플라스크에 넣고 상기 보조제 및 질산칼슘 수용액을 적가한 후 70 ℃에서 교반하며 8 시간 동안 유지시켜 본 발명의 시멘트 콘크리트용 조강혼합물을 제조하였다.To 200 g of water, 150 g of hydrated lime and 7 g of a dispersant (EGIS, Korea) were added and ground to an average particle diameter of 5 mu m to prepare a main body. Auxiliaries were prepared by adding 15 g sodium hydroxide to 50 g water separately from the subject. 20 g of calcium nitrate was added to 30 g of water, and ground to an average particle diameter of 5 µm to prepare an aqueous calcium nitrate solution. The subject was placed in a flask, and the auxiliary agent and the calcium nitrate aqueous solution were added dropwise, followed by stirring at 70 ° C. for 8 hours to prepare a crude steel mixture for cement concrete of the present invention.

제조예 1 내지 7 : 시멘트 모르타르의 제조Preparation Examples 1 to 7: Preparation of Cement Mortar

하기 표 1의 혼합비율로 시멘트 모르타르를 제조하였다. (감수제: 이지스, 한국)Cement mortar was prepared in the mixing ratio of Table 1 below. (Supervisor: Aegis, Korea)

Figure PCTKR2017007260-appb-T000001
Figure PCTKR2017007260-appb-T000001

시험예 1 : 조성 변화에 따른 시멘트 모르타르의 압축강도 변화Test Example 1 Change in Compressive Strength of Cement Mortar According to Composition Change

상기 제조예 1 내지 6에서 제조한 시멘트 모르타르에 대해 조강혼합물의 첨가에 따른 압축강도를 측정하였다. 측정은 온도 15 ℃, 상대습도 60 %에서 24 시간 동안 양생한 후에 이루어졌으며, 그 결과를 표 2에 나타내었다.The compressive strength of the cement mortar prepared in Preparation Examples 1 to 6 was measured according to the addition of the crude steel mixture. The measurement was carried out after curing for 24 hours at a temperature of 15 ℃, 60% relative humidity, the results are shown in Table 2.

Figure PCTKR2017007260-appb-T000002
Figure PCTKR2017007260-appb-T000002

시험예 2 : 온도 변화에 따른 시멘트 모르타르의 압축강도 변화Test 2: Compressive Strength of Cement Mortar with Temperature Change

상기 제조예 1 내지 6에서 제조한 시멘트 모르타르에 대해 조강혼합물의 양생온도에 따른 압축강도를 측정하였다. 측정은 상대습도 60 %에서 24 시간 동안 양생한 후에 이루어졌으며, 그 결과를 표 3에 나타내었다.The compressive strength of the cement mortar prepared in Preparation Examples 1 to 6 was measured according to the curing temperature of the crude steel mixture. Measurement was made after curing for 24 hours at 60% relative humidity, the results are shown in Table 3.

Figure PCTKR2017007260-appb-T000003
Figure PCTKR2017007260-appb-T000003

상기 시험예 1 및 2의 결과를 보면 시멘트의 양이 동일할 때 본 발명의 조강혼합물을 첨가함으로써 보다 큰 조기 압축강도값을 얻음을 알 수 있었다.The results of Test Examples 1 and 2 showed that when the amount of cement was the same, a larger early compressive strength value was obtained by adding the crude steel mixture of the present invention.

제조예 8 내지 13 : 시멘트 콘크리트의 제조Preparation Examples 8 to 13: Preparation of Cement Concrete

하기 표 4의 혼합비율로 시멘트 콘크리트를 제조하였다. (감수제: 이지스, 한국)Cement concrete was prepared in the mixing ratio of Table 4 below. (Supervisor: Aegis, Korea)

Figure PCTKR2017007260-appb-T000004
Figure PCTKR2017007260-appb-T000004

시험예 3 : 조성 변화에 따른 시멘트 콘크리트의 압축강도 변화Test Example 3 Compressive Strength Change of Cement Concrete According to Composition Change

상기 제조예 8 내지 13에서 제조한 시멘트 콘크리트에 대해 조강혼합물의 첨가에 따른 압축강도를 측정하였다. 측정은 온도 15 ℃, 상대습도 60 %에서 24 시간 동안 양생한 후에 이루어졌으며, 그 결과를 표 5에 나타내었다.The compressive strength according to the addition of the crude steel mixture was measured for the cement concrete prepared in Preparation Examples 8 to 13. Measurement was made after curing for 24 hours at a temperature of 15 ℃, 60% relative humidity, the results are shown in Table 5.

Figure PCTKR2017007260-appb-T000005
Figure PCTKR2017007260-appb-T000005

상기 시험예 3의 결과를 보면 시멘트의 양이 동일할 때 본 발명의 조강혼합물을 첨가함으로써 보다 큰 조기 압축강도값을 얻음을 알 수 있었다.The results of Test Example 3 showed that when the amount of cement was the same, a larger early compressive strength value was obtained by adding the crude steel mixture of the present invention.

이상에서 본 발명의 바람직한 실시예에 대해서 설명하였으나, 본 발명은 상술한 특정의 실시예에 한정되지 아니하며, 당해 기술분야에서 통상의 지식을 가진 자라면 본원 발명의 요지를 벗어남이 없이 다양한 변형 실시가 가능함은 물론이다. 따라서, 본 발명의 범위는 위의 실시예에 국한해서 해석되어서는 안되며, 후술하는 특허청구범위 뿐만 아니라 이 특허청구범위와 균등한 것들에 의해 정해져야 할 것이다.Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various modifications without departing from the gist of the present invention. Of course it is possible. Therefore, the scope of the present invention should not be construed as being limited to the above embodiments, but should be defined by the claims below and equivalents thereof.

Claims (14)

산화칼슘, 수산화칼슘, 탄산칼슘 및 그 혼합물로 이루어진 군에서 선택된 칼슘 화합물 100 중량부, 100 parts by weight of a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof, 규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 구성된 군에서 선택된 화합물이 0.1 내지 200 중량부,0.1 to 200 parts by weight of a compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof, 알칼리금속 또는 알칼리토금속의 수산화물, 트리에탄올아민 또는 그 혼합물 0.5 내지 30 중량부, 0.5 to 30 parts by weight of alkali metal or alkaline earth metal hydroxides, triethanolamine or mixtures thereof, 분산제 1 내지 50 중량부, 및1 to 50 parts by weight of dispersant, and 물 50 내지 600 중량부를 포함하고, 50 to 600 parts by weight of water, 시멘트 콘크리트의 시멘트 100 중량부 당 0.1 내지 10 중량부를 혼합하여 상기 시멘트 콘크리트에 조강성을 부여하는 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물.A crude steel mixture for cement concrete, characterized in that to give roughness to the cement concrete by mixing 0.1 to 10 parts by weight per 100 parts by weight of cement of cement concrete. 청구항 1에 있어서, The method according to claim 1, 상기 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, 알칼리금속 또는 알칼리토금속의 초산염, 포름산염, 질산염, 아질산염, 황산염, 티오황산염, 탄산염, 염화물, 할로겐화물, 알칸올아민, 염화철, 칼슘알루미네이트실리케이트, 및 그 혼합물 1 내지 50 중량부를 추가로 포함하는 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물.The crude steel mixture for cement concrete is, per 100 parts by weight of the calcium compound, an alkali metal or alkaline earth metal acetate, formate, nitrate, nitrite, sulfate, thiosulfate, carbonate, chloride, halide, alkanolamine, iron chloride, calcium aluminium Nate silicate, and the mixture is characterized in that it further comprises 1 to 50 parts by weight, crude steel mixture for cement concrete. 청구항 1에 있어서, The method according to claim 1, 상기 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, The crude steel mixture for cement concrete per 100 parts by weight of the calcium compound, 플라이애쉬, 바텀애쉬, 실리카퓸, 실리카, 규산염, 물유리, 슬래그 및 그 혼합물로 이루어진 군에서 선택된 실리카 화합물 10 내지 100 중량부를 추가로 포함하는 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물.Fly ash, bottom ash, silica fume, silica, silicate, water glass, slag and mixtures characterized in that it further comprises 10 to 100 parts by weight of the silica compound selected from the group consisting of, crude steel mixture for cement concrete. 청구항 1에 있어서, The method according to claim 1, 상기 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, The crude steel mixture for cement concrete per 100 parts by weight of the calcium compound, 칼슘실리케이트하이드레이트 0.1 내지 20 중량부를 추가로 포함하는 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물.A crude steel mixture for cement concrete, further comprising 0.1 to 20 parts by weight of calcium silicate hydrate. 청구항 1에 있어서, The method according to claim 1, 상기 칼슘 화합물의 평균입경은 0.01 내지 100 ㎛인 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물.The average particle diameter of the calcium compound is characterized in that 0.01 to 100 ㎛, crude steel mixture for cement concrete. 청구항 1에 있어서, The method according to claim 1, 상기 시멘트 콘크리트용 조강혼합물의 고형분 함량은 10 내지 80 무게%인 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물.Solid content of the crude steel mixture for cement concrete is characterized in that 10 to 80% by weight, crude concrete mixture for cement concrete. 청구항 1에 있어서, The method according to claim 1, 상기 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, The crude steel mixture for cement concrete per 100 parts by weight of the calcium compound, 증점제 0.001 내지 5 중량부를 추가로 포함하는 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물.A crude steel mixture for cement concrete, further comprising 0.001 to 5 parts by weight of a thickener. 청구항 1에 있어서, The method according to claim 1, 상기 시멘트 콘크리트용 조강혼합물은 상기 칼슘 화합물 100 중량부 당, The crude steel mixture for cement concrete per 100 parts by weight of the calcium compound, 소포제 0.001 내지 5 중량부를 추가로 포함하는 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물.Anti-foaming agent, characterized in that it further comprises 0.001 to 5 parts by weight, crude steel mixture for cement concrete. (A) 산화칼슘, 수산화칼슘, 탄산칼슘 및 그 혼합물로 이루어진 군에서 선택된 칼슘 화합물 100 중량부, (A) 100 parts by weight of a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate and mixtures thereof, 규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 구성된 군에서 선택된 화합물 0.1 내지 200 중량부, 0.1 to 200 parts by weight of a compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof, 분산제 1 내지 50 중량부, 1 to 50 parts by weight of the dispersant, 물 50 내지 600 중량부를 혼합하여 주제를 제조하는 단계; Preparing a subject by mixing 50 to 600 parts by weight of water; (B) 상기 칼슘 화합물 100 중량부 당, (B) per 100 parts by weight of the calcium compound, 알칼리금속 또는 알칼리토금속의 수산화물, 트리에탄올아민 또는 그 혼합물 0.5 내지 30 중량부, 0.5 to 30 parts by weight of alkali metal or alkaline earth metal hydroxides, triethanolamine or mixtures thereof, 물 1 내지 50 중량부를 혼합하여 보조제를 제조하는 단계; 및 Preparing an adjuvant by mixing 1 to 50 parts by weight of water; And (C) 상기 주제와 보조제를 혼합하는 단계를 포함하는 시멘트 콘크리트용 조강혼합물의 제조방법.(C) a method of manufacturing a crude steel mixture for cement concrete comprising the step of mixing the subject and the auxiliary. 청구항 9에 있어서, The method according to claim 9, 단계 (A) 중, During step (A), 상기 규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 구성된 군에서 선택된 화합물, 칼슘 화합물, 분산제 및 물을 혼합한 후 상기 규소, 알루미늄, 철, 마그네슘, 그 산화물 및 혼합물로 구성된 군에서 선택된 화합물 및 칼슘 화합물을 평균입경 0.01 내지 100 ㎛가 되도록 분쇄하는 단계를 추가로 포함하는 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물의 제조방법. A compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures thereof, a calcium compound, a dispersant and water and then a compound selected from the group consisting of silicon, aluminum, iron, magnesium, oxides and mixtures and Method for producing a crude steel mixture for cement concrete, characterized in that it further comprises the step of grinding the calcium compound to an average particle diameter of 0.01 to 100 ㎛. 청구항 9에 있어서, The method according to claim 9, 단계 (A)의 주제에, On the subject of step (A), 상기 칼슘 화합물 100 중량부 당, 알칼리금속 또는 알칼리토금속의 초산염, 포름산염, 질산염, 아질산염, 황산염, 티오황산염, 탄산염, 염화물, 할로겐화물, 알칸올아민, 염화철, 칼슘알루미네이트실리케이트, 및 그 혼합물 1 내지 50 중량부를 추가로 포함하는 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물의 제조방법.Acetate, formate, nitrate, nitrite, sulfate, thiosulfate, carbonate, chloride, halide, alkanolamine, iron chloride, calcium aluminate silicate, and mixtures thereof, per 100 parts by weight of the calcium compound or alkaline earth metal Method for producing a crude steel mixture for cement concrete, characterized in that it further comprises from 50 parts by weight. 청구항 9에 있어서, The method according to claim 9, 단계 (C) 이후에, After step (C), 상기 주제와 보조제의 혼합물을 5 내지 100 ℃에서 0.5 내지 24 시간 동안 유지하는 단계를 추가로 포함하는 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물의 제조방법.Maintaining the mixture of the subject and the auxiliary for 5 to 100 ℃ for 0.5 to 24 hours, characterized in that the manufacturing method of the crude steel mixture for cement concrete. 청구항 9에 있어서, The method according to claim 9, 상기 단계 (C)의 혼합은 주제를 보조제로 적가하거나, 보조제를 주제로 적가하는 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물의 제조방법.Mixing of the step (C) is the dropwise addition of the main ingredient as a supplement, characterized in that the dropwise addition of the auxiliary agent, a method for producing a crude steel mixture for cement concrete. 청구항 9 내지 청구항 13 중 어느 한 청구항의 방법에 의해 제조된 것을 특징으로 하는, 시멘트 콘크리트용 조강혼합물.The crude steel mixture for cement concrete, characterized in that produced by the method of any one of claims 9 to 13.
PCT/KR2017/007260 2016-07-18 2017-07-06 Calcium compound-containing high-early strength mixture for cement concrete and production method therefor Ceased WO2018016780A1 (en)

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