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WO2016136007A1 - Panneau de coffrage de béton décoratif, procédé de fabrication de celui-ci, et procédé de transfert de motif irrégulier - Google Patents

Panneau de coffrage de béton décoratif, procédé de fabrication de celui-ci, et procédé de transfert de motif irrégulier Download PDF

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Publication number
WO2016136007A1
WO2016136007A1 PCT/JP2015/076323 JP2015076323W WO2016136007A1 WO 2016136007 A1 WO2016136007 A1 WO 2016136007A1 JP 2015076323 W JP2015076323 W JP 2015076323W WO 2016136007 A1 WO2016136007 A1 WO 2016136007A1
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WO
WIPO (PCT)
Prior art keywords
concrete
mold
transfer surface
decorative
glossiness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2015/076323
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English (en)
Japanese (ja)
Inventor
山下　剛志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Kasei Co Ltd
Original Assignee
Sekisui Plastics Co Ltd
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Filing date
Publication date
Application filed by Sekisui Plastics Co Ltd filed Critical Sekisui Plastics Co Ltd
Priority to CN201580076739.3A priority Critical patent/CN107407098A/zh
Publication of WO2016136007A1 publication Critical patent/WO2016136007A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/10—Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air

Definitions

  • the present invention relates to a concrete decorative mold, a method for producing the same, and a method for transferring an uneven pattern.
  • a method for imparting a concavo-convex pattern on a concrete casting surface include, for example, using a decorative foam for concrete made of a bead method foam resin having a transfer surface for transferring the concavo-convex pattern on the concrete casting surface.
  • a method of transferring the concavo-convex pattern to the concrete surface for example, Patent Documents 1 and 2).
  • a plurality of concrete decorative molds such that a transfer surface faces inward on a placement surface side (surface side) of a pair of concrete panels facing each other at a concrete placement planned location. Install the frames side by side. Then, after placing a concrete material between the concrete panels and curing (curing) it, the concrete decorative mold is removed, thereby obtaining concrete having a casting surface on which an uneven pattern is formed.
  • Patent Documents 1 and 2 are difficult to peel off from the concrete placement surface when the mold is removed, and are cracked, or the decorative mold on the concrete placement surface. Since the frame remains attached, it is difficult to use it repeatedly. Further, if the pressure on the concrete placement surface of the concrete decorative mold is lowered in order to facilitate peeling at the time of demolding, sufficient transferability cannot be ensured. Thus, it is difficult to achieve both sufficient transferability and excellent peelability.
  • the present invention provides a decorative mold frame for concrete which has sufficient transferability, is easily peeled off from the concrete placement surface during demolding, is not easily broken, and can be used a plurality of times, a method for manufacturing the same, and a method for transferring an uneven pattern.
  • the purpose is to provide.
  • the concrete decorative mold for concrete is a foamed concrete decorative decorative mold made of foamed resin having a transfer surface for transferring an uneven pattern on the concrete placement surface, and the gloss of the transfer surface measured by the following measuring method.
  • the ratio A / B between the degree A and the glossiness B of the reference surface measured by the following measurement method is 2.0 or more.
  • the glossiness is measured under the condition of a reflection angle of 60 degrees according to JIS Z8741: 1997 “Specular Glossiness—Measurement Method”.
  • the smoothness within the transfer surface is measured.
  • the smooth surface in the outer part of the transfer surface on the surface to which the concavo-convex pattern of the mold is transferred is used as the measurement surface for the glossiness measurement. To do.
  • the ratio A / B is preferably 3.5 or less.
  • the concavo-convex pattern transfer method of the present invention is a method of transferring the concavo-convex pattern on the transfer surface to the concrete placing surface using the concrete decorative mold of the present invention.
  • the method for producing a decorative mold for concrete includes a particle production process for producing expandable resin particles, a prefoaming process in which the foamable resin particles are heated and prefoamed to obtain prefoamed particles, and the prefoaming process.
  • heating, heating from the back surface side, and simultaneous heating on both surfaces are performed, and the ratio of the vapor pressure on the transfer surface side to the vapor pressure on the back surface side in the simultaneous heating on both surfaces is greater than 1.
  • the concrete decorative mold for concrete of the present invention has sufficient transferability, and is easily peeled off from the concrete placement surface during demolding and is not easily broken, and can be used a plurality of times.
  • a decorative mold for concrete that has sufficient transferability, is easily peeled off from the concrete placing surface during demolding, is not easily broken, and can be used multiple times. can get.
  • the method for transferring a concavo-convex pattern of the present invention sufficient transferability of the concavo-convex pattern and excellent peelability of the concrete decorative form can be achieved.
  • the concrete decorative mold for concrete of the present invention (hereinafter also referred to as a decorative mold) is a foamed resin decorative mold provided with a transfer surface for transferring a concavo-convex pattern onto a concrete placement surface.
  • a rectangular transfer unit 10 having a transfer surface 10 a for transferring a concavo-convex pattern onto a concrete placing surface, and a peripheral edge of the transfer unit 10 And a side wall portion 12 that rises from a concrete decorative mold 1 (hereinafter referred to as a decorative mold 1).
  • the transfer surface 10a in the decorative mold 1 can form a masonry pattern on the concrete placement surface.
  • the uneven pattern on the transfer surface of the decorative mold is not limited to a stone pattern, and may be, for example, a chisel pattern, a tile pattern, a split skin (brick) pattern, a cloth pattern, a cobblestone pattern, or the like.
  • the ratio A / B between the glossiness A of the transfer surface measured by the following measurement method and the glossiness B of the reference surface measured by the following measurement method is 2.0 or more. is there. Accordingly, the decorative mold is easily peeled off from the concrete placement surface during demolding, so that the decorative mold is difficult to break. Therefore, the decorative form of the present invention can be used multiple times.
  • the ratio A / B is preferably 2.0 to 3.5, more preferably 2.2 to 3.0. Moreover, if the ratio A / B is equal to or greater than the lower limit value of the range, the decorative mold is more easily peeled off and is less likely to break. When the ratio A / B is equal to or less than the upper limit of the range, shrinkage during the production of the decorative mold can be reduced.
  • the glossiness A of the transfer surface is measured under the condition of a reflection angle of 60 degrees according to JIS Z8741: 1997 “Specular Glossiness—Measurement Method”.
  • An example of the measuring apparatus is a gloss meter GM-60Plus / GM-268Plus manufactured by Konica Minolta.
  • the smooth surface in the transfer surface is used as the measurement surface for glossiness measurement.
  • the size of the smooth surface set as the measurement surface is determined according to the measuring device. For example, in the case of the gloss meter GM-60Plus / GM-268Plus, a smooth surface of 20 mm square or more is used as the measurement surface.
  • a part partially formed under the same heating conditions as when forming the transfer surface, or the same material as the mold A smooth surface or the like formed on the measurement sample under the same heating conditions as when the transfer surface is formed can be used as a measurement surface for the glossiness A of the transfer surface.
  • the glossiness B of the reference surface is measured under the condition of a reflection angle of 60 degrees according to JIS Z8741: 1997 “Specular Glossiness—Measurement Method” in the same manner as the transfer surface.
  • the same measuring apparatus as that for measuring the glossiness A is used.
  • the reference surface is the surface of the outer portion of the transfer surface on the transfer surface side of the mold.
  • the smooth surface at the outer portion of the transfer surface on the transfer surface side surface of the mold is used as the measurement surface for the glossiness measurement.
  • the front end surface of the side wall part 12 in the decorative mold 1 can be used as the reference surface.
  • the ratio A / B can be adjusted by adjusting the gloss level A of the transfer surface.
  • the gloss level A of the transfer surface is increased, for example, by applying a fluororesin process such as a Teflon (registered trademark) process to the surface of the mold that is in contact with the transfer surface of the decorative mold frame. Further, when the surface of the mold that contacts the transfer surface of the decorative mold frame is subjected to fluororesin processing, the slipperiness of the transfer surface of the decorative mold frame is improved, and the release property of the decorative mold frame is improved.
  • the glossiness A of the transfer surface is increased. Further, the glossiness A of the transfer surface is increased by increasing the vapor pressure on the transfer surface side during foam molding.
  • the heating time of the transfer surface is increased during foam molding or the vapor pressure on the transfer surface side is increased, the resin particles on the surface layer on the transfer surface side melt to form a skin layer, and the strength of the transfer surface Becomes higher. For this reason, the resin that forms the transfer surface at the time of demolding is less likely to remain cracked on the concrete casting surface.
  • the gloss level B is brought into contact with the mold surface that is not processed with fluororesin.
  • it can be defined as a value measured for a surface (reference surface) formed under the same conditions as the transfer surface.
  • the decorative mold of the present invention is made of a foamed resin.
  • the decorative mold of the present invention is preferably made of a foamed resin molded product obtained by a bead method. It does not specifically limit as resin used for the decorative mold of this invention, The well-known resin used for a decorative mold can be used.
  • polystyrene resin polystyrene, high impact polystyrene, styrene-ethylene copolymer, styrene-maleic anhydride copolymer, styrene-acrylonitrile copolymer, etc.
  • polystyrene resin polystyrene, high impact polystyrene, styrene-ethylene copolymer, styrene-maleic anhydride copolymer, styrene-acrylonitrile copolymer, etc.
  • polyolefin Resin polyethylene, polypropylene, ethylene-vinyl acetate copolymer, etc.
  • polystyrene resins and styrene-modified polyolefin resins are preferred.
  • polystyrene resin polystyrene is preferable.
  • the styrene-modified polyolefin resin is obtained by impregnating and polymerizing a polyolefin resin particle with a styrene monomer.
  • a styrene-modified polyethylene resin is preferable.
  • the proportion of the styrene component in the styrene-modified polyolefin resin is preferably 40 to 90% by mass, more preferably 50 to 85% by mass, and still more preferably 55 to 75% by mass.
  • the molecular weight of the resin is not particularly limited and can be appropriately selected.
  • a resin having a mass average molecular weight of 150,000 to 450,000 can be mentioned.
  • one type of resin may be used alone, or two or more types of resins may be used in combination.
  • the density of the decorative mold is preferably 0.01 ⁇ 0.1g / cm 3, more preferably 0.015 ⁇ 0.033g / cm 3. If the density of the decorative mold is greater than or equal to the lower limit of the above range, it is difficult to shrink during molding. If the density of the decorative mold is less than or equal to the upper limit of the above range, the amount of expandable resin particles used can be reduced.
  • the density of the decorative mold is the density measured by the method described in JIS K7222: 2005 “Foamed plastics and rubbers—How to obtain the apparent density”. Specifically, a test piece of 50 cm 3 or more (in the case of semi-rigid and soft materials, 100 cm 3 or more) is cut out from the decorative mold so as not to change the original cell structure, The mass of the test piece is measured, and the density is calculated by the following equation.
  • the test piece is cut out from a decorative mold frame that has passed 72 hours or more after molding, and is allowed to stand for 16 hours or more in an atmosphere of 23 ° C. ⁇ 2 ° C. and 50% ⁇ 5%, and then the mass is measured.
  • the atmosphere in which the test piece is allowed to stand may adopt conditions of 27 ° C. ⁇ 2 ° C. and 65% ⁇ 5% in a special environment such as a tropical region.
  • Density (g / cm 3 ) Test piece mass (g) / Test piece volume (cm 3 )
  • the concavo-convex pattern transfer method of the present invention can be performed by a known method except that the decorative mold of the present invention is used.
  • the decorative mold according to the present invention can be used when an uneven pattern such as a masonry pattern is provided on a concrete placing surface constituting a wall of a building, a road side wall, a river side wall or the like.
  • a plurality of decorative molds are connected in a vertical and horizontal fashion so that the transfer surface faces the concrete placement side, and the concrete is placed and cured (cured). Later, by removing the decorative mold, concrete having a concavo-convex pattern formed on the casting surface is formed.
  • a pair of concrete panels face each other and are fixed at the planned placement site.
  • the transfer surface 10a faces the other concrete panel side so that the plurality of decorative molds 1 are arranged. Install side by side vertically and horizontally.
  • a concrete material is placed between the concrete panels. After the concrete material is hardened, the decorative mold 1 is removed together with the concrete panel on the placement surface side. Thereby, the concrete by which the uneven
  • the method for producing the decorative mold of the present invention is not particularly limited, and the bead method is preferable.
  • backup foaming process, and a foam molding process is mentioned.
  • Particle production process A process of producing expandable resin particles.
  • Pre-foaming step a step of heating foamable resin particles and pre-foaming to obtain pre-foamed particles.
  • Foam molding step a step of filling the pre-expanded particles in a cavity of a molding die and heating and performing in-mold foam molding to obtain a decorative mold.
  • the shape of the expandable resin particles to be produced is preferably spherical or substantially spherical.
  • a method for producing the expandable resin particles a known method can be adopted, and examples thereof include the following methods (1) to (3).
  • the resin seed particles are polymerized in the presence of a polymerization initiator while the monomer is absorbed (by seed polymerization method) to prepare resin particles, and the resin particles are made to contain a foaming agent to obtain a foamable resin. How to get particles. (3) Supplying an aqueous medium, a monomer and a polymerization initiator into the autoclave, and subjecting the monomer to suspension polymerization while heating and stirring in the autoclave, classifying as necessary to prepare resin particles, A method of obtaining expandable resin particles by adding a foaming agent to the resin particles.
  • Examples of the melt extrusion method of method (1) include the following methods.
  • the resin is melted to obtain a molten resin, and a foaming agent is press-fitted into the molten resin and kneaded to obtain a molten resin composition containing the foaming agent.
  • a foaming agent is press-fitted into the molten resin and kneaded to obtain a molten resin composition containing the foaming agent.
  • the extrudate is cut in the cooling liquid, and the extrudate is cooled and solidified by contact with the cooling liquid.
  • expandable resin particles in which the foaming agent is uniformly dispersed in the resin are obtained.
  • foaming agent normally used for manufacture of an expandable resin particle can be used.
  • specific examples include physical foaming agents such as aliphatic hydrocarbons (n-butane, isobutane, n-pentane, isopentane, neopentane, etc.), various alcohols, carbon dioxide, water, nitrogen and the like.
  • aliphatic hydrocarbons are preferable, and n-butane, isobutane, n-pentane, isopentane, and neopentane are more preferable.
  • a foaming agent may be used individually by 1 type, and may use 2 or more types together.
  • the foamable resin particles include foaming nucleating agents (inorganic fine powders such as talc, chemical foaming agents, etc.), antistatic agents (polyethylene glycol, stearic acid monoglyceride, etc.), blocking agents (zinc stearate, etc.), etc. These ingredients may be blended.
  • foaming nucleating agents inorganic fine powders such as talc, chemical foaming agents, etc.
  • antistatic agents polyethylene glycol, stearic acid monoglyceride, etc.
  • blocking agents zinc stearate, etc.
  • the monomer used in the method (2) and the method (3) is appropriately selected according to the type of resin that forms the desired expandable resin particles.
  • styrene monomers styrene, ⁇ -methylstyrene, vinyltoluene, chlorostyrene, ethylstyrene, i-propylstyrene, dimethylstyrene, bromostyrene, etc.
  • styrene monomers styrene, ⁇ -methylstyrene, vinyltoluene, chlorostyrene, ethylstyrene, i-propylstyrene, dimethylstyrene, bromostyrene, etc.
  • vinyl monomers that can be copolymerized with styrene monomers methyl (meth) acrylate, ethyl (meth) acrylate, (meth) acrylonitrile, divinylbenzene, alkylene glycol dimethacrylate, etc. are used. To do.
  • Organic peroxides include benzoyl peroxide, lauryl peroxide, t-butyl peroxybenzoate, di-t-butyl peroxide, t-butyl peroxypivalate, t-butyl peroxyisopropyl carbonate, and t-butyl peroxy Oxy-2-ethylhexyl monocarbonate, t-butylperoxy-2-ethylhexanoate, t-butylperoxyacetate, 2,2-bis (t-butylperoxy) butane, t-butylperoxy-3, 3,5-trimethylhexanoate, di-t-butylperoxyhexahydroterephthalate, and the like.
  • the azo compound include azobisisobutyronitrile and azobisdimethylvaler
  • the aqueous medium is a medium containing water as a main component and a small amount of a water-soluble organic solvent such as alcohol, ketone or ether.
  • a suspension stabilizer may be added in advance to the aqueous medium in order to stabilize the dispersibility of the monomer droplets or the resin seed particles.
  • the suspension stabilizer include water-soluble polymers (polyvinyl alcohol, methyl cellulose, etc.), poorly water-soluble inorganic salts (tricalcium phosphate, magnesium pyrophosphate, etc.) and the like.
  • the seed particles used in the seed polymerization method may be the same material as the monomer or a different material.
  • Examples of the method of incorporating the foaming agent into the resin particles include a method of impregnating the resin particles with the foaming agent. For example, after a slurry in which resin particles are dispersed in an aqueous medium is put in a pressure vessel such as an autoclave, a foaming agent is supplied into the pressure vessel and held for a certain period of time, and the resin particles are impregnated with the foaming agent.
  • a foaming agent those described above can be used.
  • the average particle diameter of the expandable resin particles is preferably 0.2 to 2.0 mm, and more preferably 0.6 to 1.2 mm.
  • the average particle diameter in this invention shows the value measured by performing classification operation using a low tap type sieve shaker (made by Iida Seisakusho).
  • the content of the foaming agent in the expandable resin particles is preferably 2 to 10 parts by mass and more preferably 5 to 6 parts by mass with respect to 100 parts by mass of the resin.
  • the expandable resin particles are pre-expanded by heating with steam heating or the like to obtain pre-expanded particles.
  • the vapor pressure in the preliminary foaming step is preferably 0.005 to 0.1 MPa, more preferably 0.01 to 0.03 MPa.
  • the vapor pressure means a gauge pressure.
  • the heating time is preferably from 100 to 360 seconds, more preferably from 180 to 240 seconds.
  • the average particle diameter of the pre-expanded particles is preferably 1 to 10 mm, and more preferably 3 to 4 mm from the viewpoint that the pattern and edge of the decorative mold can be easily formed.
  • the pre-expanded particles are preferably pre-expanded so as to have a slightly lower bulk density than the density of the decorative mold frame in order to enhance the filling property at the time of molding and to make the pattern and edges clear.
  • the bulk density of the pre-expanded particles is preferably 0.01 ⁇ 0.1g / cm 3, more preferably 0.012 ⁇ 0.03g / cm 3.
  • pre-expanded particles are filled in a cavity of a mold, heated by steam heating, and subjected to in-mold foam molding to produce a foamed resin decorative mold.
  • pre-expanded particles are filled into a molding die composed of a male die that forms the transfer surface side of the decorative mold and a female die that forms the back surface side.
  • heating from the transfer surface side (male side) of the mold with steam one side heating
  • heating from the back side (female side) (reverse one side heating)
  • simultaneous heating on both sides double side heating
  • the transfer surface heating time T 1 is preferably 10 to 60 seconds, and more preferably 20 to 40 seconds. If the heating time of the transfer surface T 1 is lower than the lower limit value of the range, the ratio A / B is increased, as a result, the decorative mold from striking ⁇ concrete is difficult to break easily peeled off. If the heating time of the transfer surface T 1 is less than the upper limit of the range, the shrinkage can be suppressed, the cycle is not longer than necessary. Heating time T 1 of the transfer surface, whereas mean the total time of heating and the double-sided heating.
  • the ratio (T 1 / T 2 ) of the heating time T 1 of the transfer surface to the heating time T 2 of the back surface in the in-mold foam molding is preferably more than 1, more preferably more than 1.0 and not more than 1.6, and 1.2. Is more preferably 1.4.
  • the back surface of the heating time T 2 are, means the total time of the reverse one heating sided heating.
  • the vapor pressure on the transfer surface side during heating is preferably 0.03 to 0.10 MPa, more preferably 0.05 to 0.07 MPa. Further, the vapor pressure on the transfer surface side in double-sided heating is preferably 0.05 to 0.10 MPa, and more preferably 0.06 to 0.09 MPa.
  • the ratio A / B is increased, and as a result, the decorative mold is easily peeled off from the concrete placing surface and is not easily broken. If the vapor pressure on the transfer surface side is not more than the upper limit of the above range, overheating such as tertiary foaming and shrinkage is reduced.
  • the vapor pressure on the side opposite to the transfer surface (back side) in reverse one-side heating is preferably 0.03 to 0.10 MPa, and more preferably 0.05 to 0.07 MPa. Further, the vapor pressure on the side opposite to the transfer surface in the double-sided heating is preferably 0.04 to 0.09 MPa, and more preferably 0.05 to 0.08 MPa.
  • the ratio (P 1 / P 2 ) of the vapor pressure P 1 on the transfer surface side to the vapor pressure P 2 on the opposite side (back surface side) during double-sided heating in the in-mold foam molding is preferably more than 1, more than 1.0 .2 or less is more preferable, and 1.05 to 1.15 is more preferable.
  • the cooling time is preferably 1 to 10 seconds, and more preferably 2 to 7 seconds.
  • the decorative mold is difficult to peel off when the mold is removed, and the decorative mold is easily cracked. This is because there are grooves and pinholes that cannot be seen with the naked eye on the transfer surface of the foamed plastic decorative mold, so that the surface area increases due to the grooves and pinholes, which makes it difficult to peel from the concrete. it is conceivable that.
  • the ratio A / B between the glossiness A of the transfer surface and the glossiness B of the reference surface is controlled to 2.0 or more, so that the transferability is sufficient. While securing, the decorative mold can be easily peeled from the concrete placement surface during demolding.
  • the decorative form frame is hard to break and can be used multiple times. This is because by controlling the ratio A / B to be 2.0 or more, the size and number of grooves and pinholes on the transfer surface of the decorative mold frame are reduced, and the resistance at the time of demolding is further reduced. it is conceivable that.
  • Example 1 Styrene-modified polyethylene particles (trade name “Piocelan (registered trademark)” (PO-SPE-40, 0.025 g / cm 3 ), produced by Sekisui Plastics Co., Ltd.) as foaming resin particles in a pre-foaming device After pre-foaming to a bulk density of 0.025 g / cm 3 , aging was performed at 25 ° C. for 40 hours to obtain pre-foamed particles.
  • a male mold and a female mold capable of forming a cavity capable of molding the decorative mold 1 shown in FIG. 1 were used.
  • the Teflon (registered trademark) coating was applied to the portion of the male cavity surface corresponding to the transfer surface.
  • the outer part of the male cavity surface corresponding to the transfer surface is such that the front end surface of the side wall is a smooth surface having a width of 20 mm (forms the reference surface of the mold), and is coated with Teflon (registered trademark). None.
  • the pre-expanded particles are filled into a cavity of an automatic foam bead molding machine equipped with the mold, and one-side heating is performed with water vapor for 7 seconds so that the vapor pressure is 0.06 MPa on both the transfer surface side and the opposite side. It was. Next, reverse one-side heating was performed with water vapor for 5 seconds so that the vapor pressure was 0.06 MPa on both the transfer surface side and the opposite side.
  • the vapor pressure P 1 of the transfer surface side 0.085 MPa, the vapor pressure P 2 on the opposite side is subjected to double-sided heating of 25 seconds with water vapor as a 0.075 MPa.
  • the transfer surface heating time T 1 was 32 seconds
  • the back surface heating time T 2 was 30 seconds
  • the ratio (T 1 / T 2 ) was 1.07.
  • the ratio (P 1 / P 2 ) during double-sided heating was 1.33.
  • the foam in the cavity of the mold is water-cooled for 5 seconds, and is then allowed to cool under reduced pressure (cooling step) to provide a decorative mold having a density of 0.030 g / cm 3 having a transfer surface for transferring the stone pattern. Molded product 1 was obtained.
  • Example 1 the gloss ratio A / B between the transfer surface and the reference surface is 2.0, and in Comparative Example 1, the vapor pressure P 1 on the transfer surface side during double-sided heating is 0.
  • the pressure was reduced to 0.07 MPa and the heating time was dropped from 25 seconds to 15 seconds, the ratio A / B dropped to 1.7.
  • the obtained decorative mold-molded product was used, concrete was actually placed, and the mold was removed after one day had passed and the initial curing of the concrete was completed. 1 was not only easily released, but was able to be used for 8 rotations.
  • the decorative mold-molded product 2 obtained in Comparative Example 1 was able to be removed for the first time, but it was difficult to peel off and was cracked for the second time.
  • the ratio A / B did not reach 2.0, but became 1.9.
  • the glossiness A of the decorative mold 3 was 25, and even when the ratio A / B was less than 2.0, it was found that the number of diversions increased if the glossiness A was 25 or more.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
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Abstract

L'objectif de la présente invention est de fournir un panneau de coffrage de béton décoratif qui, non seulement, possède des propriétés suffisantes de transfert, mais est également facile à séparer de la surface de béton mis en place et moins susceptible de se casser lorsqu'il est détaché et qui peut être utilisé une pluralité de fois. Le panneau de coffrage de béton décoratif (1) est constitué d'une résine alvéolaire et porte une surface de transfert (10a) pour transférer un motif irrégulier sur la surface du béton mis en place, le rapport de la brillance A de la surface de transfert (10a), telle que mesurée par un procédé de mesure spécifique, sur la brillance B d'une surface de référence, telle que mesurée par le procédé de mesure spécifique, A/B, étant égal ou supérieur à 2,0.
PCT/JP2015/076323 2015-02-24 2015-09-16 Panneau de coffrage de béton décoratif, procédé de fabrication de celui-ci, et procédé de transfert de motif irrégulier Ceased WO2016136007A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201580076739.3A CN107407098A (zh) 2015-02-24 2015-09-16 混凝土用美化模板和其制造方法、以及凹凸图案的转印方法

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JP2015034026A JP2016156172A (ja) 2015-02-24 2015-02-24 コンクリート用化粧型枠
JP2015-034026 2015-02-24

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WO2016136007A1 true WO2016136007A1 (fr) 2016-09-01

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1119914A (ja) * 1997-07-08 1999-01-26 Sekisui Chem Co Ltd コンクリート打設用型枠
JP2004156332A (ja) * 2002-11-07 2004-06-03 Sekisui Plastics Co Ltd コンクリート型枠

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1451073A (zh) * 2000-04-14 2003-10-22 韩商InTec株式会社 建筑底承板及其制造方法
US8470217B2 (en) * 2006-03-13 2013-06-25 Daisen Industry Co., Ltd. Foamed molding and its manufacturing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1119914A (ja) * 1997-07-08 1999-01-26 Sekisui Chem Co Ltd コンクリート打設用型枠
JP2004156332A (ja) * 2002-11-07 2004-06-03 Sekisui Plastics Co Ltd コンクリート型枠

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