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- 2018
基于PG的复合改性沥青路用性能对比
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Abstract:
沥青路面低温性能是寒区沥青路面设计的主要指标之一，现有的单一改性沥青低温性能不能满足寒区沥青路面PG技术规范的要求。本研究根据黑龙江省常用道路沥青低温性能的PG试验评定结果，研究开发了几种复合改性沥青，以满足黑龙江省寒区沥青路面低温性能的要求。研究内容包括：黑龙江省沥青路面PG分区与PGm-n标准的确定，黑龙江省道路沥青PG性能评定，复合改性沥青的研究开发与性能评定等。研究结果表明，黑龙江省道路沥青基本满足PGm-n技术标准的高温性能要求，但均不满足PGm-n技术标准的低温性能要求。复合改性沥青基本满足或接近黑龙江省道路沥青的PGm-n低温性能标准。研究结果对改善黑龙江省沥青路面的低温性能具有一定的理论与实用价值。 Low temperature performance of asphalt pavement is one of the main indicator of asphalt pavement design in cold areas, the existing single modified asphalt in low-temperature performance does not meet the requirements of PG technical specifications for asphalt pavement in cold areas. In this project, on the basis of PG test and evaluation results to common road asphalt in low-temperature performance of Heilongjiang province, the composite modified asphalt was researched and developed in order to meet the requirements of low temperature performance of asphalt pavement in cold regions in Heilongjiang province. The research contents include:determination of PG zone and PGm-n standard of asphalt pavement in Heilongjiang province, PG performance evaluation of road asphalt in Heilongjiang province, research and development and performance evaluation of composite modified asphalt. The research results show that the road asphalt in Heilongjiang province meets the requirements of PGm-n technology standards in high temperature performance, but does not meet the PGm-n standards in low temperature performance. The composite modified asphalt meets or nears the PGm-n standard in low temperature performance of road asphalt in Heilongjiang province. The research results have some theoretical and practical value to improve the low temperature performance of asphalt pavement in Heilongjiang province. 黑龙江省交通运输厅重点项目（T1102）
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