Asphalt is a natural hydrophobic material that is the most widely used waterproof material.
The main uses are asphalt coils and asphalt coatings. Asphalt-based waterproof coatings are classified into hot-melt construction type and cold construction type according to the construction method. The hot-melt construction type asphalt coating refers to a coating which is non-flowing at normal temperature and is applied in a liquid state during construction, and represents a "non-curing" rubber asphalt waterproof coating.
The cold construction type is divided into two types according to its composition: solvent type and water emulsion type.
Solvent-based asphalt waterproof coating refers to the direct dissolution of petroleum asphalt, polymer and other components into an organic solvent to form a bitumen solution, which is a solvent-based asphalt coating. Representative of epoxy asphalt paint.
The water-milk asphalt waterproof coating means that the petroleum asphalt is dispersed and emulsified in water and mixed with the polymer emulsion to form a stable aqueous dispersion, that is, a water-based asphalt coating. It is represented by polymer modified asphalt waterproof coating, sprayed quick-setting rubber asphalt waterproof coating and so on.
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