摘要
气温较低时沥青混凝土路面往往难以压实。本文对Sasobit改性沥青的各项性能,尤其对粘度特性和变温击实马歇尔试验进行了分析,认为该添加剂可以提高沥青的各项性能,并且可以降低沥青135℃粘度,同时提高60℃粘度,具有很好的低温施工性,最后通过低温成型的沥青混合料试件进行路用性能验证,结果表明Sasobit改性沥青混合料具有较好的低温施工性能。
Asphalt concrete pavement performance of additive named Sasobit compaction is difficult at low temperature. In this paper, the is analyzed in laboratory, especially the viscosity and the characteristics of Mashall test. It is found that Sasobit can enhance the performance of asphalt and can reduce the viscosity at 135℃, but increase the viscosity at 60℃. Finally, asphalt mixtures formed at low temperature are used to validate the road performance. The results show that asphalt mixture modified by Sasobit has fine construction performance at low temperature.
出处
《公路》
北大核心
2007年第3期137-141,共5页
Highway
关键词
SASOBIT
改性沥青
粘度
低温施工
Sasobit
modified asphalt
viscosity
construction at low temperature
