CN109320180A - Preparation method for making composite bricks by using construction waste - Google Patents
Preparation method for making composite bricks by using construction waste Download PDFInfo
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- CN109320180A CN109320180A CN201811436576.7A CN201811436576A CN109320180A CN 109320180 A CN109320180 A CN 109320180A CN 201811436576 A CN201811436576 A CN 201811436576A CN 109320180 A CN109320180 A CN 109320180A
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- powder
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/12—Hydraulic lime
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Using the preparation method of building castoff production composite brick, it is related to building material technical field.It is made of the raw material of following parts by weight: 85~94% parts of building waste powder, 0~8% part of pulverized limestone, 6~15% parts of water-soluble high-molecular compound aqueous solution, foaming agent are 1~1.5% part, 1~3 part of waste ceramic；Take above-mentioned raw materials that preparation can be completed according to the preparation method processing using building castoff production composite brick according to metering proportion.After adopting the above technical scheme, the invention has the following beneficial effects: there is the features such as elevated temperature strength is high, and anti-erosion is strong, heat-resistant knocking stability is good, thermal coefficient is low using the composite brick of this method preparation.
Description
Technical field
The present invention relates to building material technical fields, and in particular to utilizes the preparation side of building castoff production composite brick
Method.
Background technique
Composite brick belongs to a kind of building block.It is made of inner core and shell two parts, inner core is made by low-intensity material
Solid, such as cement expanded perlite；Shell is made by high-strength material, such as cement mortar.
Building waste refers to the slag that people generate in the production activity for being engaged in the construction industries such as removal, construction, finishing, repairerment
The general designation of soil, waste and old concrete, waste and old masonry and other wastes.With industrialization, the acceleration of urbanization process, construction industry
Fast-developing simultaneously, the building waste generated together is increasing, and it is total that the quantity of Chinese architecture rubbish has accounted for municipal refuse
1/3 or more of amount.China generates 2,400,000,000 tons of building waste within 2014, and increases year by year, at present mainly with air storage or landfill
Mode is handled, and this processing mode occupies a large amount of soil, and causes serious environmental pollution, seriously injures the mankind
Existence, therefore, recycling to building waste is to protect environment, the preferred approach that economizes on resources.However China builds rubbish at present
The interest rate again of rubbish only 5%, it is main to apply are as follows: (1) to make building blinding layer or road cushion；(2) coagulation is produced after crushing
Earth building blocks brick, paving brick etc.；(3) by waste concrete, aggregate substitution sandstone is made through crushing, shaping, sieving in useless brick.The first side
Method consumption is very little, is an utterly inadequate amount for the building waste of flood tide, and requires using high-intensitive building waste,
Second method uses cement, and manufactured brick is of poor quality, is only used for requiring low place, the third method is to build at present
The maximum application mode of building refuse, but its performance of the aggregate made of building waste is much worse than natural sand stone, many Important buildings
Object (such as highway, skyscraper, bridge) does not allow to use, and limits its application.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide it is at low cost, high-quality, meet energy conservation and subtract
The preparation method using building castoff production composite brick that row requires.Composite brick using this method preparation has elevated temperature strength
The features such as height, anti-erosion is strong, heat-resistant knocking stability is good, thermal coefficient is low.
To achieve the above object, the present invention is using following technical scheme: using building castoff make composite brick, by with
The raw material of lower parts by weight forms: 85~94% parts of building waste powder, 0~8% part of pulverized limestone, water-soluble high-molecular compound water
6~15% parts of solution, foaming agent are 1~1.5% part, 1~3 part of waste ceramic；The building waste powder be waste concrete powder,
One or more of useless brick powder, waste glass powder, useless grey starch；The pulverized limestone is one in calcium lime powder and hydrated lime in powder
Kind or two kinds, it is desirable that the efficient oxidation calcium or calcium hydroxide content are greater than 70%；The water-soluble high-molecular compound is poly- second
One or more of enol, hydroxypropyl methyl cellulose, polyacrylamide, Sodium Polyacrylate, sodium alginate, water-soluble high score
The weight percent concentration of sub- compound water solution is 0.05~1%.
The useless brick powder be foaming waste water adobe powder, waste slag brick powder, useless Dinas brickes powder, useless red brick powder, useless ceramic tile powder,
One or more of useless refractory brick powder.
The fineness of the building waste powder and pulverized limestone is partial size < 0.1mm, and 200 mesh screen over-sizes are no more than 5%.
Composite brick is made using building castoff, its preparation method is the following steps are included: the first step, by the macromolecule
Compound is dissolved in water, is configured to the aqueous solution that weight percent concentration is 0.05~1%；
Second step crushes the building waste, waste ceramic and quick lime, levigate to partial size < 0.1mm, 200 meshes sieve
Surplus < 5%, white lime divides extracting screen underflow with 100 mesh~200 meshes, or replaces quick lime with 100 mesh~200 with white lime
Mesh divides extracting screen underflow；Third step, by building waste powder 85~94%, pulverized limestone 0~8%, water-soluble high-molecular compound water
The weight percent of solution 6~15% (being converted to aqueous solution) has weighed raw material；4th step, by load weighted building waste powder,
Adobe is made in pulverized limestone and the stirring of water-soluble high-molecular compound aqueous solution, rolling, pressure forming；5th step, by manufactured brick
Base is transplanted on steam press maintenance in still kettle；6th step removes the good adobe of steam pressure from still kettle, and warehouse for finished product is sent to store 2 days
Above to get arriving finished product composite brick, in the 6th step, the steam press maintenance condition are as follows: 1.4~1.9MPa of steam pressure, temperature 180
DEG C~210 DEG C, constant temperature and pressure curing time 2.5~8 hours.
After adopting the above technical scheme, the invention has the following beneficial effects: having high temperature strong using the composite brick of this method preparation
The features such as degree is high, and anti-erosion is strong, heat-resistant knocking stability is good, thermal coefficient is low.
Specific embodiment
Embodiment 1
Present embodiment the technical solution adopted is that: using building castoff make composite brick, by following parts by weight
Several raw material compositions: 85% part of building waste powder, 6% part of water-soluble high-molecular compound aqueous solution, is discarded 1% part of pulverized limestone
2 parts of ceramics；Its preparation method is the following steps are included: the first step, is dissolved in water for the high-molecular compound, is configured to weight hundred
Dividing specific concentration is 0.05~1% aqueous solution；By the building waste, waste ceramic and quick lime crush, it is levigate to partial size <
0.1mm, 200 mesh screen over-size < 5%, white lime 100 mesh~200 meshes divide extracting screen underflow, or replace raw stone with white lime
Ash divides extracting screen underflow with 100 mesh~200 meshes；Third step, by building waste powder 85~94%, pulverized limestone 0~8%, water solubility
The weight percent of high-molecular compound aqueous solution 6~15% (being converted to aqueous solution) has weighed raw material；4th step will weigh
Building waste powder, pulverized limestone and the stirring of water-soluble high-molecular compound aqueous solution, rolling, pressure forming adobe is made；5th
Step, is transplanted on steam press maintenance in still kettle for manufactured adobe；The good adobe of steam pressure is removed from still kettle, is sent by the 6th step
Warehouse for finished product store 2 days it is above to get to finished product composite brick, in the 6th step, the steam press maintenance condition are as follows: steam pressure 1.4~
180 DEG C~210 DEG C, constant temperature and pressure curing time 2.5~8 hours of 1.9MPa, temperature.
The main reason for traditional Dinas brickes generation intensity is calcium oxide and (180 DEG C of optimum temperature under hydrothermal conditions of SiO2
~220 DEG C), generate tobermorite (5 calcium oxide 6SiO25H2O).The intensity of original tobermorite is higher than coagulation
Hydrated calcium silicate gel in soil, but since the sand particle in Dinas brickes is big, it is small with the contact area of lime, and activity is low,
The tobermorite of generation is few, therefore steam pressure sand-lime turns intensity lower than concrete strength.From the point of view of forming the condition of tobermorite,
Produce autoclaved lime-sand brick not necessarily use lime and sand, it is concrete, cinder brick, common brick, ceramic tile in building waste, resistance to
All contain calcium oxide and SiO2 in firebrick, mortar, contain in glass in SiO2, especially waste concrete containing 16% or more (according to
The length of concrete service time is different) unhydrated cement and calcium hydroxide, also maintain the activity of raw water mud, itself
Can generate intensity, therefore for waste concrete building waste, need to only add a small amount of calcium oxide or calcium oxide is not added also can be steam-cured
The composite brick of some strength out, completely dispenses with sand, few not only to be reduced costs in this way with even without lime, and sharp again
With building waste, huge environmental benefit is generated.
Embodiment 2
The present embodiment and the difference of embodiment 1 are: it is made of the raw material of following parts by weight: building waste powder
90% part, 3% part of pulverized limestone, 10% part of water-soluble high-molecular compound aqueous solution, 2 parts of waste ceramic；Other raw material compositions, system
Preparation Method is same as Example 1.
Embodiment 3
The present embodiment and the difference of embodiment 1 are: it is made of the raw material of following parts by weight: building waste powder
90% part, 3% part of pulverized limestone, 10% part of water-soluble high-molecular compound aqueous solution, 2 parts of waste ceramic；Other raw material compositions, system
Preparation Method is same as Example 1.
After adopting the above technical scheme, the invention has the following beneficial effects: having high temperature strong using the composite brick of this method preparation
The features such as degree is high, and anti-erosion is strong, heat-resistant knocking stability is good, thermal coefficient is low.
The above is only used to illustrate the technical scheme of the present invention and not to limit it, and those of ordinary skill in the art are to this hair
The other modifications or equivalent replacement that bright technical solution is made, as long as it does not depart from the spirit and scope of the technical scheme of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (7)
1. making composite brick using building castoff, it is characterised in that: it is made of the raw material of following parts by weight: building waste
85~94% parts of powder, 0~8% part of pulverized limestone, 6~15% parts of water-soluble high-molecular compound aqueous solution, foaming agent be 1~
1.5% part, 1~3 part of waste ceramic.
2. utilizing the preparation method of building castoff production composite brick, it is characterised in that its preparation method the following steps are included:
The high-molecular compound is dissolved in water by the first step, is configured to the aqueous solution that weight percent concentration is 0.05~1%；Second
Step crushes the building waste, waste ceramic and quick lime, and levigate to partial size < 0.1mm, 200 mesh screen over-size < 5% are ripe
Lime 100 mesh~200 meshes divide extracting screen underflow, or replace 100 mesh of quick lime~200 meshes point to take under sieve with white lime
Object；Third step, by building waste powder 85~94%, pulverized limestone 0~8%, water-soluble high-molecular compound aqueous solution 6~15%
The weight percent of (being converted to aqueous solution) has weighed raw material；4th step, by load weighted building waste powder, pulverized limestone and water-soluble
Adobe is made in the stirring of property high-molecular compound aqueous solution, rolling, pressure forming；Manufactured adobe is transplanted on steam pressure by the 5th step
Steam press maintenance in kettle；6th step removes the good adobe of steam pressure from still kettle, send warehouse for finished product store 2 days it is above to get arrive at
Product composite brick, in the 6th step, the steam press maintenance condition are as follows: 1.4~1.9MPa of steam pressure, 180 DEG C~210 DEG C of temperature, permanent
Warm constant pressure curing time 2.5~8 hours.
3. the preparation method according to claim 1 using building castoff production composite brick, it is characterised in that: described
Useless brick powder is foaming waste water adobe powder, in waste slag brick powder, useless Dinas brickes powder, useless red brick powder, useless ceramic tile powder, useless refractory brick powder
It is one or more of.
4. the preparation method according to claim 1 using building castoff production composite brick, it is characterised in that: described
The fineness of building waste powder and pulverized limestone is partial size < 0.1mm, and 200 mesh screen over-sizes are no more than 5%.
5. according to claim 1 make composite brick using building castoff, it is characterised in that by following parts by weight
Raw material composition: 85% part of building waste powder, 1% part of pulverized limestone, 6% part of water-soluble high-molecular compound aqueous solution, waste ceramic 2
Part.
6. according to claim 1 make composite brick using building castoff, it is characterised in that by following parts by weight
Raw material composition: 90% part of building waste powder, 3% part of pulverized limestone, 10% part of water-soluble high-molecular compound aqueous solution, waste ceramic
2 parts；Other raw material compositions, preparation method are same as Example 1.
7. according to claim 1 make composite brick using building castoff, it is characterised in that by following parts by weight
Raw material composition: 90% part of building waste powder, 3% part of pulverized limestone, 10% part of water-soluble high-molecular compound aqueous solution, waste ceramic
2 parts；Other raw material compositions, preparation method are same as Example 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811436576.7A CN109320180A (en) | 2018-11-28 | 2018-11-28 | Preparation method for making composite bricks by using construction waste |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811436576.7A CN109320180A (en) | 2018-11-28 | 2018-11-28 | Preparation method for making composite bricks by using construction waste |
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| Publication Number | Publication Date |
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| CN109320180A true CN109320180A (en) | 2019-02-12 |
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| CN201811436576.7A Pending CN109320180A (en) | 2018-11-28 | 2018-11-28 | Preparation method for making composite bricks by using construction waste |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4095111A1 (en) * | 2021-05-26 | 2022-11-30 | HeidelbergCement AG | Calcium-silicate bricks |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999024378A2 (en) * | 1997-11-10 | 1999-05-20 | Hema Beschichtungsservice | Sprayable covering for asbestos cement surfaces |
| CN104556932A (en) * | 2014-12-12 | 2015-04-29 | 齐齐哈尔越峰科技有限公司 | Preparation method of baking-free brick comprising waste ceramic |
| CN105254324A (en) * | 2015-09-30 | 2016-01-20 | 何相华 | Air-entrapping steam curing component prepared from construction waste and preparation method thereof |
-
2018
- 2018-11-28 CN CN201811436576.7A patent/CN109320180A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999024378A2 (en) * | 1997-11-10 | 1999-05-20 | Hema Beschichtungsservice | Sprayable covering for asbestos cement surfaces |
| CN104556932A (en) * | 2014-12-12 | 2015-04-29 | 齐齐哈尔越峰科技有限公司 | Preparation method of baking-free brick comprising waste ceramic |
| CN105254324A (en) * | 2015-09-30 | 2016-01-20 | 何相华 | Air-entrapping steam curing component prepared from construction waste and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4095111A1 (en) * | 2021-05-26 | 2022-11-30 | HeidelbergCement AG | Calcium-silicate bricks |
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Application publication date: 20190212 |