Fibre-reinforced anti-crack mortar dry powder

A crack-resistant mortar and fiber-reinforced technology, which is applied in the field of special crack-resistant mortar, can solve problems such as unreasonable matching, affecting project quality and normal use, and promoting the use of unfavorable materials, and achieves the effect of convenient construction

Inactive Publication Date: 2008-06-25
武汉科华高新材料发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the innovation of national wall materials and the deepening of the promotion and application of energy-saving buildings, many defects exposed by traditional mortar, such as wall leakage, ventilation, peeling and other problems caused by wall hollowing, cracking, falling off, etc., It is becoming more and more prominent in construction engineering, which seriously affects the quality of the project and normal use, and also restricts the popularization and application of thermal insulation materials
A large amount of data shows that the main reasons for these problems, in addition to the structural cracks caused by uneven foundation settlement, can be summarized as the following two aspects: one is the high water absorption rate and large shrinkage of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A fiber-reinforced anti-cracking mortar dry powder, its composition and weight content are: 42.5P.O cement 10%, fine sand 75%, silicon-aluminum hollow ball 12%, polyester fiber 1.48%, mineral shrinkage inhibitor 0.5%, 0.02% cement hydration regulator, 1% modifier; the composition of the hydration regulator and the weight percentage of the cement component are: sodium gluconate 0.2‰, paper mill sewage dried at 80°C 1‰; The composition and weight content of the modifying agent are: 10% of industrial-grade vinyl acetate-ethylene copolymer, 90% of heavy calcium powder and talcum powder.

Embodiment 2

[0021] A fiber-reinforced anti-cracking mortar dry powder, its composition and weight content are: 42.5P.O cement 15%, fine sand 72%, silicon-aluminum hollow ball 9%, polypropylene fiber 2%, mineral shrinkage inhibitor 0.78%, Cement hydration regulator 0.05%, modifier 1.2%; the composition of the hydration regulator and the weight percentage of the cement component are: sodium polyphosphate 1‰, paper mill sewage dried at 80°C 1‰ The composition and weight content of the modifying agent are: 12% of industrial-grade vinyl acetate homopolymer, 88% of heavy calcium powder and talcum powder.

Embodiment 3

[0023] A fiber-reinforced anti-cracking mortar dry powder, its composition and weight content are: 42.5P.O cement 20%, fine sand 70%, silicon-aluminum hollow ball 6.76%, polyester fiber 1%, mineral shrinkage inhibitor 1%, Cement hydration regulator 0.04%, modifier 1.2%; wherein the composition of the hydration regulator and the weight percentage of the cement component are: 0.5‰ of sucrose, 1.5% of paper mill sewage dried at 80°C; The composition and weight content of the neutralizing agent are: 15% of industrial grade polyethylene-vinyl acetate copolymer, 85% of heavy calcium powder and talcum powder.

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PUM

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Abstract

The invention provides a fiber mortar dried powder material for strengthening the anti-crack, which comprises functionality the materials of cement, sand, silicon aluminum hollow spheroid, alkali proof fiber, mineral contraction inhibitor, cement hydration regulation agent, modifier and so on. Wherein, the cement hydration regulation agent comprises cement hydration slow hardening components and molding moisture and negative setup components. The mortar dried powder material for strengthening the anti-crack is able to be used through adding water to solve the problem of inaccurate calculation and material wasting of the traditional method owing to the preparation of the material in the scene. The prepared mortar solves the problem of crack owing to the stress of the ordinary mortar. The invention has the advantages of molding moisture, slow hardening, waterproof and easy construction, which is mainly used as the anti-crack mortar for the construction of heat preservation and heat insulation wall and also other construction walls.

Description

1. Technical field [0001] The invention belongs to special anti-crack mortar for building thermal insulation walls, in particular to a dry powder material of fiber-reinforced anti-crack mortar. 2. Background technology [0002] With the innovation of national wall materials and the deepening of the promotion and application of energy-saving buildings, many defects exposed by traditional mortar, such as wall leakage, ventilation, peeling and other problems caused by wall hollowing, cracking, falling off, etc., It is becoming more and more prominent in construction engineering, which seriously affects the quality of the project and normal use, and also restricts the popularization and application of thermal insulation materials. A large amount of data shows that the main reasons for these problems, in addition to the structural cracks caused by uneven settlement of the foundation, can be summarized as the following two aspects: one is the high water absorption rate of the wall...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B16/06C04B14/38C04B24/24
CPCC04B2111/27C04B14/041C04B2111/2038C04B2111/343C04B28/02
Inventor 马保国蹇守卫马玲
Owner 武汉科华高新材料发展有限公司
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