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Waterproof coating for roads and bridges and production process thereof

A waterproof coating and production process technology, applied in asphalt coatings, carboxyl rubber coatings, coatings, etc., can solve problems such as low film elasticity, strength and other mechanical indicators, low solid content, low construction efficiency, etc., to ensure normal operation. , The effect of improving safety and prolonging the service life of the project

Inactive Publication Date: 2012-12-26
XIANGTAN HONGYUAN ENG MATERIAL TECHCO
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AI Technical Summary

Problems solved by technology

However, due to the impact of the emulsification technology on the addition of rubber modifiers in water-based polymer modified asphalt waterproof coatings, the small additions lead to low mechanical indicators such as elasticity and strength of the coating film; the coating is a granular suspension, which is bonded to the base surface after curing Small strength; low solid content, multiple constructions are required to achieve the design thickness, low construction efficiency, and its application in the fields of transportation, heavy anti-corrosion, and exposed waterproofing is limited

Method used

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Embodiment Construction

[0025] The present invention is a waterproof coating for roads and bridges. According to weight percentage, its component distribution ratio is: 50-58% of heavy traffic asphalt, 3.5-4.6% of SBS, 2.7-3.5% of SBR, 4-6% of carboxylated styrene-butadiene rubber %, plasticizer (motor oil or third line oil) 2.5-3.2%, cationic emulsifier 0.7-1.2%, water 26-32%.

[0026] The optimal ratio in this plan is by weight percentage, and its component ratio is: heavy traffic asphalt 54%, SBS4%, SBR3%, carboxylated styrene-butadiene rubber 4%, plasticizer 2.5%, cationic emulsifier 1%, water 31.5%.

[0027] The components involved in the formula mainly have the following functions:

[0028] Heavy traffic asphalt: It is the continuous phase of modified asphalt, which has the functions of hydrophobicity, anti-aging, acid and alkali resistance and bonding, and plays the role of main waterproof;

[0029] SBS and SBR rubber: are modifiers that improve the high temperature, low temperature, tensile...

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PUM

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Abstract

The invention relates to a coating and a preparation process thereof, in particular to a waterproof coating for roads and bridges and a production process for the waterproof coating. By high polymer material formula modification technology and processing technology, an asphalt-based material, a rubber modified aid and a function modifier are subjected to a blend modification process, and are emulsified into an asphalt-based high polymer composite waterproof coating which is chemically reacted with concrete to firmly bond to the concrete through a special process. The product is a water-based material and environment-friendly; and because the asphalt in the coating can be chemically reacted with the concrete for bonding, water leakage is avoided, the use safety of engineering is improved, the service life of the engineering is prolonged, and a large quantity of engineering reconstruction and engineering maintenance resources are saved.

Description

technical field [0001] The invention relates to a coating and a preparation process thereof, in particular to a waterproof coating for roads and bridges and a production process thereof. Background technique [0002] At present, the waterproof materials of bridge decks in China are mainly roll materials (accounting for more than 80%). However, from the perspective of the application effect of waterproof membranes, there are many hidden dangers, and water leakage is common. The root cause of this phenomenon is that although the physical properties of ordinary coiled materials are excellent, they cannot be fully adhered to the base surface, which will prevent the occurrence of water channeling, and one damage will cause the entire waterproof layer to fail. In view of this, the coating waterproofing of the bridge deck has caused an upsurge in research and development. [0003] There are one-component and two-component coatings for waterproofing. Two-component polyurethane an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D195/00C09D153/02C09D109/06C09D113/00C09D7/12
Inventor 杨卫红
Owner XIANGTAN HONGYUAN ENG MATERIAL TECHCO
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