What are the anti-corrosion and waterproof materials?

What is anticorrosive and waterproof material? Literally, it should be easy to understand! Usually this material will be more expensive because it has these two functions. At present, asphalt is rarely used for waterproofing in the construction market. Asphalt itself has a short life, and it changes greatly when it expands with heat and contracts with cold, so it is unstable. Polyurethane, cement-based and permeable crystalline waterproof coatings can all be made indoors, and the most important thing is that the construction is simple and convenient.

Flexible waterproof layer of bridge deck

Bridge deck waterproofing generally adopts special waterproof materials, such as road and bridge waterproof coating and waterproofing membrane, which are collectively called bridge deck flexible waterproof layer.

Waterproof material for urban viaduct

Urban viaducts are generally asphalt concrete pavements. Judging from the current design, roads and bridges are generally designed with water-based asphalt waterproof materials or hot-melt SBS waterproof coatings, because they are not only waterproof, but also cohesive.

The cost of polyurea is too high.

Polyurea is a good waterproof material, but it can't be directly bonded with asphalt concrete, and it has to be used as a bonding layer. Besides, polyurea is too expensive for waterproofing of viaducts.

Silane impregnation has good anticorrosion effect.

Silane impregnation is mainly used for anticorrosion, and the anticorrosion effect is very good. This material is not resistant to water pressure, and it is not waterproof where there is water pressure. This material is mainly used for anticorrosion of piers, box girders, caps and other parts, with good results.

Waterproof and anticorrosion of buildings

In fact, anti-corrosion and waterproof materials are often used in buildings, because buildings need waterproof and anticorrosion. Waterproofing is to prevent water leakage, such as waterproofing membrane or asphalt, and anti-corrosion is to isolate corrosive substances and prevent acid and alkali from corroding equipment, such as FRP lining, rubber lining, ceramic tile lining and plastic lining. It is not only used for the pavement of viaduct.