| 摘要 |
The present invention relates generally to water based polymer modified asphalt emulsions, their composition, their manufacture and their uses. For example, there is disclosed a method for coating a structure or surface by applying a polymer modified asphalt emulsion coating to the structure or surface. The coating is preferably applied as a two component spray comprising an aqueous catalyst and an aqueous asphalt emulsion. The aqueous catalyst can employ an aqueous acid, preferably citric acid, but can also use an aqueous catalyst comprising an aqueous solution of calcium chloride. Preferably each of the two components are directed through separate ports on a spray nozzle so that they mix together on the fly external to the nozzle before contacting the surface to be coated. This methodology can be used to sound insulate structures, to encapsulate friable materials, to weather coat a structure, and to create a non-corrosive waterproof monolithic membranes.
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