半刚性基层沥青路面下封层材料性能研究

 侯晚生,刘博俊,周 

(陕西路桥集团有限公司,陕西 西安  710075

  采用抗剪强度试验、拉拔试验和渗水试验对普通乳化沥青、SBR改性乳化沥青和SBS改性乳化沥青三种下封层粘结材料的性能进行试验研究,试验结果表明:SBS改性乳化沥青的防水性能最优,SBR改性乳化沥青次之,普通乳化沥青最差。

关键词下封层抗剪强度试验拉拔试验渗水试验

中图分类号U414          文献标识码A

Study on Material Properties of Lower-seal

for Semi-rigid Base Asphalt Pavement

HOU Wan-shengLIU Bo-junZHOU Xiong

Shaanxi Road & Bridge CoLTDXi‘an 710075China

AbstractBased on the laboratory tests of direct shear testdrawing testwater seepage test and anti-scouring testthe paper analyzed the factors of common modified asphalt emulsionSBR modified asphalt emulsion and SBS modified asphalt emulsion.The results shows thatthe evaporation residue of SBS modified emulsified asphalt are superior to the other two kinds of emulsified asphalt.

Key wordsUnder seal coatShear TestPullout TestSeepage Test