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Exterior-wall crack-resistant putty powder

An anti-cracking putty and exterior wall technology, applied in the direction of filling slurry, etc., can solve the problems of wall cracking, endangering the normal living of residents, and weak adhesion.

Inactive Publication Date: 2013-08-07
张家港市创成纺织有限公司
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  • Summary
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  • Claims
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AI Technical Summary

Problems solved by technology

The usual putty is first leveled with slaked lime or pre-mixed mortar and then putty is applied. In this way, the slaked lime in the wall reacts with carbon dioxide in the air to form calcium carbonate, causing volume expansion, reducing water resistance and strength, and weak adhesion. Finally, it leads to cracking of the wall and leakage of the wall, which endangers the normal living of residents.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0006] Weigh 35% of cement by weight; 50% of sand; 15% of heavy calcium carbonate; 4% of hydroxypropyl methylcellulose; 3% of latex powder; Short Fiber 1.0% Composition

[0007] According to the above weight ratio, add them into the mixer one by one, fully mix and stir evenly. use

[0008] Before use, spray with water to remove all slack. The ratio of putty powder to water is about 1:0.5, stir until there are no particles, and let it fully dissolve and react into a paste. When using, first clean the peeling and stained wall surface, and then carry out construction after the surface layer is dry. Let the prepared materials stand for 5 to 10 minutes, and use a paint knife and a trowel to carry out construction. After hard drying, carry out the second, Three times of recoating, the thickness of each application should be controlled within 0.5mm, and it should be smoothed after one day. After hardening, the putty paint film has the characteristics of strong adhesion, good water...

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Abstract

The invention relates to exterior-wall crack-resistant putty powder mainly composed of cement, sand, heavy calcium carbonate, hydroxypropyl methyl cellulose, latex powder, high-molecular poly-propylamine, lignocellulose, polypropylene staple fiber, and the like. The exterior-wall crack-resistant putty powder has the characteristics such as high adhesion force, good water resistance, good corrosion resistance, smooth and flat surface, good impact resistance, and the like.

Description

technical field [0001] The invention relates to an anti-cracking putty powder for exterior walls, which belongs to the field of building materials. Background technique [0002] At present, there are many kinds of putty for exterior walls, which are mainly used for leveling cement walls, concrete walls and other building surfaces that need to be leveled. The usual putty is first leveled with slaked lime or pre-mixed mortar and then putty is applied. In this way, the slaked lime in the wall reacts with carbon dioxide in the air to form calcium carbonate, causing volume expansion, reducing water resistance and strength, and weak adhesion. Finally, it leads to cracking of the wall and leakage of the wall, endangering the normal living of the residents. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned existing technical problems, based on inorganic materials such as cement, mixed with polymer modified materials, to provid...

Claims

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Application Information

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IPC IPC(8): C09D5/34
Inventor 陈宗达
Owner 张家港市创成纺织有限公司
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