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Capillary crystalline backwater coating and preparation method thereof

A technology of osmotic crystallization and backwater, applied in the field of construction, can solve the problem that the second impermeability pressure index needs to be improved, and achieve the effect of outstanding performance and simple and easy-to-control process.

Inactive Publication Date: 2020-09-22
岳阳市科兴防水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the anti-seepage effect and the second anti-seepage pressure index of the existing backwater coatings still need to be improved, so further research is needed

Method used

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  • Capillary crystalline backwater coating and preparation method thereof
  • Capillary crystalline backwater coating and preparation method thereof
  • Capillary crystalline backwater coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The present embodiment provides a kind of preparation method of osmotic crystalline type backwater paint, comprises the steps:

[0026] (1) Divide 420kg Portland cement into two parts to obtain 315kg Portland cement a and 105kg Portland cement b; divide 390kg quartz sand with a particle size of 80 mesh into two parts to obtain 195kg quartz sand a and 195kg quartz sand b ;

[0027] (2) Mix 315kg of Portland cement a with 195kg of quartz sand a, then add 50kg of latex powder, and stir evenly for 30min under the condition of 30r / min to obtain mixture a;

[0028] (3) Add 8kg sodium silicate, 8kg borax, 1.5kg powder defoamer, 1.5kg hydroxypropyl methylcellulose, 4kg polyvinyl alcohol, 0.8kg water reducer and 0.6kg water-repellent powder in sequence in mixture a, Stir evenly for 50 min under the condition of 50 r / min to obtain mixture b;

[0029] (4) Add 105kg of Portland cement b, 195kg of quartz sand b and 70kg of quartz powder with a particle size of 180 mesh to the mixt...

Embodiment 2

[0031] The present embodiment provides a kind of preparation method of osmotic crystalline type backwater paint, comprises the steps:

[0032] (1) Divide 440kg of Portland cement into two parts to obtain 325kg of Portland cement a and 115kg of Portland cement b; divide 410kg of quartz sand with a particle size of 120 mesh into two parts to obtain 205kg of quartz sand a and 205kg of quartz sand b ;

[0033] (2) Mix 325kg of Portland cement a with 205kg of quartz sand a, then add 70kg of latex powder, and stir evenly for 40min under the condition of 40r / min to obtain mixture a;

[0034] (3) Add 12kg sodium silicate, 12kg borax, 2.5kg powder defoamer, 2.5kg hydroxypropyl methylcellulose, 4.5kg polyvinyl alcohol, 1.2kg water reducing agent and 1kg water-repellent powder to mixture a successively, Stir evenly for 60 minutes under the condition of 60r / min to obtain mixture b;

[0035] (4) Add 115kg of Portland cement b, 205kg of quartz sand b and 90kg of quartz powder with a parti...

Embodiment 3

[0037] The present embodiment provides a kind of preparation method of osmotic crystalline type backwater paint, comprises the steps:

[0038] (1) Divide 430kg of Portland cement into two parts to obtain 310kg of Portland cement a and 120kg of Portland cement b; divide 400kg of quartz sand with a particle size of 100 mesh into two parts to obtain 200kg of quartz sand a and 200kg of quartz sand b ;

[0039] (2) Mix 310kg of Portland cement a with 200kg of quartz sand a, then add 60kg of latex powder, and stir evenly for 35min under the condition of 35r / min to obtain mixture a;

[0040] (3) Add 10kg sodium silicate, 10kg borax, 2kg powder defoamer, 2kg hydroxypropyl methylcellulose, 4.2kg polyvinyl alcohol, 1kg water reducer and 0.8kg hydrophobic powder to the mixture a in sequence, at 55r Stir evenly for 55min under the condition of / min to obtain mixture b;

[0041] (4) Add 120kg of Portland cement b, 200kg of quartz sand b and 80kg of quartz powder with a particle size of 2...

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Abstract

The invention relates to a capillary crystalline backwater coating and a preparation method thereof. The coating comprises the following raw materials in parts by weight: 420-440 parts of Portland cement, 390-410 parts of quartz sand, 70-90 parts of quartz powder, 50-70 parts of latex powder, 8-12 parts of sodium silicate, 8-12 parts of borax, 1.5-2.5 parts of a powder defoaming agent, 1.5-2.5 parts of hydroxypropyl methyl cellulose, 4-4.5 parts of polyvinyl alcohol, 0.8-1.2 parts of a water reducing agent and 0.6-1 part of hydrophobic powder. The capillary crystalline type backwater coating is excellent in mortar impermeability and concrete impermeability, and particularly high in backwater pressure secondary impermeability; the preparation method only needs to uniformly stir and mix theraw materials, the process is simple and easy to control, and large-scale production is facilitated.

Description

technical field [0001] The invention belongs to the field of construction, and in particular relates to a osmotic crystal backwater coating and a preparation method thereof. Background technique [0002] The permeable crystalline backwater paint is a powdery material prepared with Portland cement and quartz sand as the main components. After it is mixed with water, it can be formulated into a slurry that can be brushed or sprayed on the cement concrete surface; it can also be pressed into the fully solidified cement concrete surface by dry spreading. [0003] However, the anti-seepage effect and the second anti-seepage pressure index of the existing backwater coatings still need to be improved, so further research is needed. Contents of the invention [0004] In order to solve the problems existing in the prior art, the invention provides a osmotic crystal type backwater coating and a preparation method thereof. The permeable crystalline backwater paint has excellent mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/27
CPCC04B28/04C04B2111/00293C04B2111/00482C04B2111/27C04B2201/50C04B14/06C04B24/26C04B22/0013C04B2103/50C04B24/383C04B24/2623C04B2103/302C04B2103/65
Inventor 李为李明安汪定林
Owner 岳阳市科兴防水材料有限公司
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