| 摘要 |
The procedure consists of applying a surfactant (6) to the base layer (4), followed by a bitumen-bound material (3) sprayed with bituminous emulsion (3). The emulsion is sprayed with a breaking agent (7), e.g. as it is applied, to leave a non-adhesive surface. The bituminous emulsion contains between 40 and 70 wt.% of a binding agent, and is cationic in nature, while the breaking agent is an aq. soln. of an anionic surfactant or polymer, e.g. polymer salts or acrylic acid-based copolymer. |
