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Mortar crack-resistance impervious water-proofing powder and preparation method thereof

A technology of waterproof powder and anti-crack, applied in the field of construction mortar waterproof additives, can solve the problems of insufficient compactness of concrete engineering structure, water seepage, internal and external cracking, etc., and achieve the effect of eliminating complicated processes, reducing pollution and saving costs.

Inactive Publication Date: 2012-10-03
河南省绿韵建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] What the present invention aims to solve is the problem of water seepage caused by insufficient compactness and internal and external cracks in concrete engineering structures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take 2 parts of silica fume, 1.5 parts of calcium sulfoaluminate, 0.2 part of β-naphthalenesulfonic acid formaldehyde condensation salt modified with sodium gluconate, 0.2 part of calcium stearate and 0.01 part of sodium α-alkenyl sulfonate, add Put it into the mixer and stir it, take it out after stirring evenly, and make a mortar that resists cracking, seepage and waterproofing.

Embodiment 2

[0024] Take 4 parts of Class I fly ash, 2.5 parts of calcium sulfoaluminate, 0.6 parts of β-naphthalenesulfonic acid formaldehyde condensation salt modified with sodium gluconate, 0.4 parts of zinc stearate and 0.03 parts of sodium dodecylsulfonate , add it into the mixer and stir, and take it out after stirring evenly to make a mortar that resists cracking and seepage.

Embodiment 3

[0026] Take 3 parts of silica fume, 3.5 parts of calcium sulfoaluminate, 0.4 part of β-naphthalenesulfonic acid formaldehyde condensation salt modified with sodium gluconate, 0.3 part of zinc stearate and 0.02 part of sodium α-alkenyl sulfonate, add Put it into the mixer and stir it, take it out after stirring evenly, and make a mortar that resists cracking, seepage and waterproofing.

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Abstract

The invention relates to mortar crack-resistance impervious water-proofing powder which is prepared from the following materials in mass parts and the additional proportion: 1.5-3.5 parts of closed-grained powder, 1.5-3.5 parts of expansion material, 0.2-0.6 part of water reducing agent, 0.2-0.4 part of moisture repel and 0.01-0.03 part of air entraining agent. A preparation method of the water-proofing powder comprises the following steps: putting 1.5-3.5 parts of closed-grained powder, 1.5-3.5 parts of expansion material, 0.2-0.6 part of water reducing agent, 0.2-0.4 part of moisture repel and 0.01-0.03 part of air entraining agent in a mixer, evenly mixing to obtain the mortar crack-resistance impervious water-proofing powder. Cement concrete and mortar are added to overcome the disadvantages of brittleness, crack and not enough compactness of cement gel hard material, thereby playing an impervious water-proofing role, improving the self permanent water-proofing performance of a concrete structure, saving the complex technology of adhering coiled materials, and therefore, the cost is saved.

Description

technical field [0001] The invention relates to a waterproof additive for building mortar, in particular to a crack-resistance and anti-seepage waterproof powder for mortar and a preparation method thereof. Background technique [0002] At present, although the building waterproof materials in our country are still mainly coiled materials, the rigid waterproof materials that strengthen the self-waterproofing of concrete structures are the key to the root cause. Structural self-waterproof concrete is to add functional admixtures on the basis of ordinary concrete ratio to achieve anti-seepage and waterproof effect. The construction operation is simple and there is no special technical requirement, which improves the compactness of the concrete, improves the physical and mechanical properties and durability of the concrete, and greatly reduces the construction cost. From a technical point of view, structural self-waterproof concrete is the key to solving the root cause. Improv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/16C04B24/22C04B103/65
Inventor 郭长顺
Owner 河南省绿韵建材有限公司
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