Water-emulsion organic silicon composited acrylic acid modified asphalt cement-base waterproof coating and preparation method thereof

A technology of modified asphalt and waterproof coating, applied in the field of cement-based waterproof coating and its preparation, can solve the problems of adverse effect of construction period, difficult construction of waterproof engineering, and high degree of drying of foundation, achieve excellent shear resistance and avoid demulsification. , the effect of large elongation at break

Inactive Publication Date: 2012-12-26
ANHUI ZHONGYI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, as a solvent-based coating, it has relatively high requirements for the degree of dryness of the foundation, which brings great difficulty to the construction of waterproof projects in a humid environment. During construction in the rainy season, it will also adversely affect the construction period.

Method used

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  • Water-emulsion organic silicon composited acrylic acid modified asphalt cement-base waterproof coating and preparation method thereof
  • Water-emulsion organic silicon composited acrylic acid modified asphalt cement-base waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Water-emulsion type organic silicon composite acrylic modified asphalt cement-based waterproof coating, which is composed of component A and component B, the weight ratio of component A: component B is 1:0.8;

[0047] Each raw material in the first component and the weight percentage of the first component are:

[0048] Styrene acrylic emulsion (R106 emulsion of Union Carbide Company) 70.0%,

[0049] Silicone polymer emulsion (isobutyl trimethoxysilane emulsion) 3%

[0050] Emulsified asphalt (commercially available, anionic emulsified asphalt) 15.0%,

[0051] Filler (fly ash and mica powder, each accounting for 1 / 2 by weight) 8.0%,

[0052] Additives (sodium pentachlorophenate and BYK-22 defoamer, weight each 1 / 2) 0.8%,

[0053] Water (tap water) 3.2%,

[0054] The raw materials in the second component and their weight percentages are:

[0055] Cement (white cement) 95.0%,

[0056] Filler (calcium carbonate) 5.0%.

[0057] The preparation method of the above-mentioned water-emulsion s...

Embodiment 2

[0065] Water-emulsion silicone composite acrylic modified asphalt cement-based waterproof coating, which is composed of component A and component B, and the weight ratio of component A: component B is 1:1.25;

[0066] Each raw material in the first component and the weight percentage of the first component are:

[0067] Acrylic emulsion (F-400 emulsion of BASF) 50.0%,

[0068] Silicone polymer emulsion (vinyl benzyl dimethoxy silane emulsion) 5%

[0069] Emulsified rubber modified asphalt (commercially available, anionic) 25.0%,

[0070] Filler (fly ash) 12.0%,

[0071] Additives (BYK-33 defoaming agent and T-731 wetting and dispersing agent, each accounting for 1 / 2 by weight) 0.6%,

[0072] Water (tap water) 7.4%,

[0073] The raw materials in the second component and their weight percentages are:

[0074] Cement (Ordinary Portland Cement) 100.0%.

[0075] The preparation method of the above-mentioned water-emulsion silicone composite acrylic modified asphalt cement-based waterproof coating...

Embodiment 3

[0083] Water-emulsion silicone composite acrylic modified asphalt cement-based waterproof coating, which is composed of component A and component B, and the weight ratio of component A: component B is 1:1.2;

[0084] The raw materials in the first component and their weight percentages are:

[0085] Styrene acrylic emulsion (R106 emulsion) 32.0%,

[0086] Silicone polymer emulsion (Dimethyldimethoxysilane emulsion) 30%

[0087] Emulsified asphalt (anionic emulsified asphalt and emulsified rubber modified asphalt, each accounting for 1 / 2 by weight) 33.0%,

[0088] Filler (mica powder and kaolin) 1.0%,

[0089] Additives (082 defoamer, BYK-181 wetting and dispersing agent and sodium pentachlorophenate, 1 / 3 by weight each) 2.5%,

[0090] Water (tap water) 1.5%,

[0091] The raw materials in the second component and their weight percentages are:

[0092] Cement (white cement) 70.0%,

[0093] Filler (calcium carbonate and quartz powder, each accounting for 1 / 2 by weight) 30.0%.

[0094] The prepar...

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Abstract

The invention relates to a cement-base waterproof coating for water proofing, seepage proofing and liquid proofing of roads and bridges and preparation method thereof. The invention is characterized in that the water-emulsion organic silicon composited acrylic acid modified asphalt cement-base waterproof coating is composed of component A and component B in weight ratio of 1:0.5-1.5; wherein the component A contains the following raw materials by weight percent: 30-70% of acrylic emulsion or styrene-acrylic emulsion, 1-30% of organic silicon resin, 10-50% of emulsified asphalt, 1-20% of filler, 0.1-3% of auxiliary agent and 1-10% of water; and the component B contains the following raw materials by weight percent: 70-100% of cement and 0-30% of filler. The invention has the characteristics of strong adhesive force with foundation, high tensile strength, high elongation at break, strong adaptability, favourable shearing performance, low cost and being environmentally friendly.

Description

Technical field [0001] The invention relates to a cement-based waterproof coating used for road and bridge waterproofing, anti-seepage and anti-leakage and a preparation method thereof. Background technique [0002] The current coating waterproof technology and materials mainly adopt the following technologies and materials: [0003] 1. Solvent-based waterproof coating. There are mainly polyurethane waterproof coatings, polyurethane modified asphalt waterproof coatings, SBS modified asphalt waterproof coatings, SBR modified asphalt waterproof coatings, rubber waterproof coatings, and silicone rubber waterproof coatings. Its common feature is organic solvents as carriers and diluents, which generally have the advantages of high strength, high elongation, and good impermeability. However, due to the use of organic solvents, environmental pollution and impact on the health of production personnel and construction personnel are inevitable. Organic solvents are flammable and explosiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B111/27
Inventor 冯守中宋乐山王军张贵平崔琳辛国树
Owner ANHUI ZHONGYI NEW MATERIAL TECH CO LTD
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