| 摘要 |
<p>A homogeneous composition for road surfacing contains a bitumen for road use and a quantity of a mixture of thermoplastic organic polymers of up to 20 parts by weight per 100 parts by weight of the bitumen, said mixture containing not less than 40% and up to 70% by weight of one or more polyolefins, the remaining percentage consisting essentially of polyvinylchloride, polyethylene terephthalate and polystyrene. This mixture of thermoplastic polymers can be obtained by recovering and recycling the plastics material contained in solid urban refuse or in industrial waste.</p> |
