| 摘要 |
<p>Bitumen/polymer compositions having improved mechanical properties are produced by stirring together, at a temperature of 100-230 °C, a bitumen or bitumen mixture, a sulphur-curable elastomer and a polymeric additive consisting of at least one functionalised olefin copolymer and a sulphur-donating coupling agent. The bitumen/polymer compositions may be used directly or in dilute form to make bituminous binders for road surfaces, coated materials and sealing coatings.</p> |
