塔河沥青路用性能影响因素

Influencing factors of Tahe asphalt road performance

为了提高新疆塔河原油炼制沥青的质量,采用《公路沥青路面施工技术规范》指标与SHRP(美国公路战略研究计划)指标,分析了基质90#沥青、技改90#沥青、市政专用90#沥青、SBS改性沥青和SBR改性沥青5种塔河沥青结合料路用性能,研究了塔河原油性质与生产工艺对其性能的影响。结果表明:高沥青质的质量分数决定了5种塔河沥青都具有优良的高温性能;也决定了塔河基质沥青的低温性能相对不理想,只能在生产工艺环节中通过优化调和成分和改性的方法进行改善。

To improve the quality of Xinjiang Tahe asphalt, this paper studies the performances of base-90^#, skill-improved-90^#, municipal-dedication-90^#, SBS modified asphalt, SBR modified asphalt by using the indices of Chinese standard Technique Specification for Highway Asphalt Pavement Construction and SHRP（Strategic Highway Research Program）. The influences of properties of crude oil and production technology on the road performances of asphalt are conducted through experiments. The result shows that the good performance at high temperature and bad performance at low temperature of basis asphalt is determined by the high content of asphaltine, the road performance at low temperature can be improved only through optimizing the contents and adding modifier in the production. 3 tabs, 3 figs, 8 refs.