Waterproof mortar and preparation method thereof

A technology of waterproof mortar and quartz sand, which is applied in the field of building materials, can solve the problems of insufficient bonding strength between waterproof mortar and base layer, insufficient durability to meet the needs of society, weak compressive and flexural strength, etc. The effect of strong junction strength and film formation

Inactive Publication Date: 2019-10-18
深圳工建科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because ordinary organic polymers are easy to age and have poor durability, the waterproof shelf life is only 5 years. With the development of the economy and the improvement of people's living standards, the society has higher and higher requirements for the working life of building waterproof design. The existing cement-based The durability of polymer waterproof mortar is increasingly unable to meet the needs of the society; in addition, the existing cement-based polymer waterproof mortar on the market usually has poor impermeability, weak compressive and flexural strength, and gaps between the waterproof mortar and the base layer. The problem of insufficient bond strength between them cannot meet the increasingly higher requirements of building construction technology

Method used

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  • Waterproof mortar and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0020] A kind of waterproof mortar, comprises the raw material of following parts by weight (each part by weight is counted as 1g): 100 parts of ordinary portland cement of 52.5 strength grade, 35 parts of cationic neoprene latex (solid content is 48%), 0.3 part of Pingpingjia 102. 0.06 part of ammonium sulfide, 0.1 part of citric acid, 0.1 part of rhamnolipid, 0.05 part of silicone high-efficiency defoamer, 0.3 part of basalt fiber (6mm particle size), 200 parts of quartz sand, 18 parts of water. Among them, Pingpingjia 102 and ammonium sulfide are stabilizers, citric acid is a metal chelating agent, and rhamnolipid is a surfactant.

[0021] Its specific preparation method comprises the following steps:

[0022] 1) Mix cationic neoprene latex, Pingpingjia 102, ammonium sulfide, citric acid, rhamnolipid, organic silicon high-efficiency defoamer and water, and stir evenly to obtain a neoprene latex mixed emulsion;

[0023] 2) adding ordinary portland cement into the neoprene l...

Embodiment 2

[0025] A kind of waterproof mortar, comprises the raw material of following parts by weight (each part by weight is counted as 1g): 100 parts of ordinary Portland cement of 52.5 strength grades, 40 parts of cationic chloroprene latex (solid content is 48%), 0.6 part of Pingpingjia 102. 0.06 parts of ammonium sulfide, 0.2 parts of citric acid, 0.2 parts of rhamnolipid, 0.2 parts of silicone high-efficiency defoamer, 0.5 parts of basalt fiber (particle size 6mm), 160 parts of quartz sand, 15 parts of water. Among them, Pingpingjia 102 and ammonium sulfide are stabilizers, citric acid is a metal chelating agent, and rhamnolipid is a surfactant. Its concrete preparation method is identical with embodiment 1.

Embodiment 3

[0027] A kind of waterproof mortar, comprises the raw material of following parts by weight (each part by weight is counted as 1g): 100 parts of ordinary Portland cement of 52.5 strength grades, 44 parts of cationic neoprene latex (solid content is 48%), 0.4 part of Pingpingjia 102. 0.07 parts of ammonium sulfide, 0.3 parts of citric acid, 0.3 parts of rhamnolipid, 0.3 parts of silicone high-efficiency defoamer, 0.7 parts of basalt fiber (6mm particle size), 130 parts of quartz sand, 15 parts of water. Among them, Pingpingjia 102 and ammonium sulfide are stabilizers, citric acid is a metal chelating agent, and rhamnolipid is a surfactant. Its concrete preparation method is identical with embodiment 1.

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Abstract

The invention discloses waterproof mortar and a preparation method thereof. The waterproof mortar comprises the following raw materials in parts by weight: 80-120 parts of Portland cement, 30-50 partsof cationic chloroprene latex, 0.2-1.2 parts of a stabilizer, 0.05-0.2 part of a metal chelating agent, 0.05-0.5 part of a surfactant, 0.05-0.3 part of a defoaming agent, 0-2 parts of basalt fiber, 100-200 parts of quartz sand, and 10-20 parts of water. According to the above manner, the waterproof mortar has strong film-forming properties and good elasticity, and has high bonding strength, compressive strength and bending strength, and strong water resistance and durability.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a waterproof mortar and a preparation method thereof. Background technique [0002] The durability of waterproof materials has always been an important factor restricting the quality of construction projects. With the progress and development of construction technology, cement-based polymer waterproof mortar has been developed rapidly. The polymer molecule has strong diffusion ability, penetrates into the capillary pores and cracks on the surface of the substrate material, and blocks the gaps. The filaments produced during the coagulation of the emulsion can bridge between the mortar and the matrix to form a mechanical bond, and can be used in cement. A film with high cohesion is formed between the slurry and the aggregate, and the pores in the mortar are blocked to greatly improve the performance of the mortar. Therefore, polymer cement-based waterproof mortar has b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/27C04B111/20
CPCC04B28/04C04B2111/20C04B2111/27C04B2201/50C04B24/2682C04B2103/50C04B14/4643C04B14/06C04B24/32C04B24/06C04B22/14C04B2103/402
Inventor 方青罗燕李远树张明瑞
Owner 深圳工建科技有限公司
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