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Design and construction requirements of waterproof coatings for roads and bridges



1. Moisture volatilization curing coatings that are easy to work on wet base surfaces should be selected, such as hydrophilic coatings such as emulsified asphalt, styrene-butadiene…

1. Moisture volatilization curing coatings that are easy to work on wet base surfaces should be selected, such as hydrophilic coatings such as emulsified asphalt, styrene-butadiene latex modified asphalt and cationic chloroprene latex modified asphalt waterproof coatings;

2. Choose waterproof coatings with large elongation at break to adapt to the vibration and deformation of the bridge;

3. The selected waterproof layer has reliable bonding performance with the road bridge board and top layer;

4. In order to enhance the waterproofing effect, the coating should be used in combination with fiberglass cloth, non-woven fabrics, etc. to increase the strength of the waterproof layer;

5. The construction base should be clean, smooth and free of laitance. Reaching more than 70% of concrete strength.

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Author: clsrich

 
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