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Gypsum based light energy-saving plate and method for preparing same

An energy-saving board and gypsum-based technology, which is applied in the field of building materials, can solve the problems of reducing the application effect of boards, increasing material bulk density and thermal conductivity, reducing cohesive force, and water resistance, so as to reduce bulk density and thermal conductivity, solve drying shrinkage, and improve The effect of water resistance

Active Publication Date: 2017-08-29
武汉菡美洛建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after adopting the above improvements, the board’s own cohesion and water resistance will decrease accordingly in use; and the bulk density and heat conduction of the material will increase, reducing the application effect of the board.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] S10, the commercially available specific retarder, carboxypropyl methylcellulose, water reducing agent, air-entraining agent, vinyl acetate homopolymer rubber powder, defoamer that will meet the requirements described above are according to 1:0.3: The mass ratio of 0.4:0.003:3:0.2 is mixed evenly to obtain functional additives;

[0032] S20, then take 10 parts of 42.5 grade cement, 10 parts of vitrified microbead lightweight aggregate, 10 parts of calcite powder, 50 parts of high-strength α hemihydrate gypsum, and add 8 parts of additives obtained by mixing in step S10 and mix evenly, then Add water and stir evenly into the mold. After the curing period, the product can be demoulded.

Embodiment 2

[0034] S10, commercially available specific retarders, carboxypropyl methyl cellulose ethers, water reducers, air-entraining agents, vinyl acetate and ethylene copolymer powders, polydimethylsiloxanes that will meet the requirements described above The alkane defoamer is mixed uniformly according to the mass ratio of 1:0.3:5:0.003:4:0.4 to obtain a functional auxiliary;

[0035] S20, then take 15 parts of 42.5 grade cement, 15 parts of vitrified microbead lightweight aggregate, 20 parts of calcite powder, 60 parts of high-strength α hemihydrate gypsum, and add 10 parts of additives obtained by mixing in step S10 and mix evenly, then Add water and stir evenly into the mold. After the curing period, the product can be demoulded.

Embodiment 3

[0037] S10, commercially available specific retarder, carboxypropyl methyl cellulose ether, melamine water reducer, air-entraining agent, acrylate and styrene copolymer powder, polyether defoamer that will meet the requirements described above Mix evenly according to the mass ratio of 0.2:0.2:3:0.002:2:0.2 to obtain the functional additive;

[0038] S20, then take 10 parts of 42.5 grade cement, 5 parts of vitrified microbead lightweight aggregate, 10 parts of calcite powder, 40 parts of high-strength α hemihydrate gypsum, and add 4 parts of additives obtained by mixing in step S10 and mix evenly, then Add water and stir evenly into the mold. After the curing period, the product can be demoulded.

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Abstract

The invention discloses a gypsum based light energy-saving plate and a method for preparing the same. The gypsum based light energy-saving plate comprises 40-60 parts of desulfurization gypsum, 10-15 parts of cement, 5-15 parts of vitrified micro-spheres, 10-20 parts of calcite powder and 4-10 parts of functional auxiliaries. The functional auxiliaries comprise 0.2-1 part of retarders, 0.1-5 parts of water reducing agents, 0.001-0.003 part of air entraining agents, 1.5-4 parts of redispersible latex powder, 0.2-0.3 part of cellulose ether and 0.1-0.4 part of defoaming agents. The gypsum based light energy-saving plate and the method have the advantages that the gypsum based light energy-saving plate is relatively high in compactness and comprehensive performance, and the problems of shrinkage cracking, long maintenance periods and the like of existing light partition walls can be effectively solved; the building construction costs can be reduced to a great extent, the construction periods can be shortened, the cost of partition walls can be lowered, and accordingly the gypsum based light energy-saving plate and the method have obvious technical and economical benefits.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a gypsum-based lightweight energy-saving board and a preparation method thereof. Background technique [0002] Existing lightweight energy-saving thermal insulation wallboards are generally made of glass fiber reinforced cement or calcium silicate board as the surface layer of the wallboard, with cement as the cementitious material, and lightweight aggregates such as ceramsite or polystyrene foam particles (EPS) Composite partition wall panels are made as core material. This kind of composite partition board combines various excellent performances of thermal insulation mortar, thermal insulation block and EPS board, thermal insulation and sound insulation, light weight and high strength, and greatly improves the performance of lightweight and energy-saving wall materials. [0003] The above-mentioned lightweight energy-saving thermal insulation wallboard has the disad...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B24/38C04B111/28
CPCC04B28/146C04B40/0039C04B2111/28C04B2201/20C04B2201/32C04B2201/50C04B7/02C04B14/22C04B14/28C04B40/0028C04B2103/22C04B24/383C04B2103/302C04B2103/304C04B24/2623C04B2103/50C04B24/26
Inventor 何洪学
Owner 武汉菡美洛建筑材料有限公司
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