南京林业大学学报(自然科学版) ›› 2006, Vol. 49 ›› Issue (S1): 5-7.doi: 10.3969/j.jssn.1000-2006.2006.07.002

• 研究论文 • 上一篇    下一篇

硅藻精土改性沥青混凝土的低温抗裂性能

王立国,李国芬,张高勤   

  1. 南京林业大学土木工程学院,江苏南京210037
  • 出版日期:2016-12-28 发布日期:2016-12-28

Anti-crack Ability of Diatomite Modified Asphalt Concrete Under Low Temperature

WANG Li-guo,LI Guo-fen,ZHANG Gao-qin   

  1. College of CivilEngineering Nanjing Forestry University, Nanjing 21037, China
  • Online:2016-12-28 Published:2016-12-28

摘要: <正>硅藻精土作为多孔性填料,与沥青作用时有较好的低温性能。通过室内低温劈裂试验及弯曲蠕变试验,以破坏劲度模量、弯曲蠕变速率等主要指标对4种不同沥青混凝土的低温抗裂性能进行了比较。结果表明:硅藻精土可改善沥青混凝土的物理力学性能,是一种非常好的改性剂。

Abstract: As a kind of porous fillers, the diatomite has good low temperature function when added into asphalt. Through cracking and curving experiments on four kinds of different as- phalt concretes, their low temperature function was compared. The result showed that the diatomite was a kind of good modifier. It could improve the physical and dynamic functions of asphalt concrete.

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