| 摘要 |
An asphalt binder composition useful with mineral aggregate particles to form a patching composition for the repair of roads. The asphalt binder composition comprises: (1) a medium curing liquid asphalt, (2) from about 0.1 to 13.5% by weight tall oil based on the weight of the medium curing liquid asphalt, and (3) 0.0001% to 0.05% by volume of organopolysiloxane fluid, based on the volume of medium curing liquid asphalt plus tall oil. A patching composition is also provided which comprises from about 3 to 8% of asphalt binder composition, defined above, and from about 97 to 92% by weight of a mineral aggregate, based on the weight of asphalt binder composition plus mineral aggregate. A coating or sealing composition comprises: (1) a rapid curing liquid asphalt and (2) from about 0.1 to 13.5% by weight tall oil, preferably 1% by weight tall oil, based on the weight of rapid curing liquid asphalt. Methods are provided for preparing the compositions and for repairing roadways.
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