硅藻精土对沥青混合料低温性能的影响  

Effects of Diatomite on Low Temperature Performance of Asphalt Mixture

作　　者：边疆[1,2] 李国芬[2] 赵伟强[3] 

机构地区：[1]南京工业大学土木工程学院,南京市210009 [2]南京林业大学,南京市210037 [3]南京交通职业技术学院,南京市211188

出　　处：《公路》2008年第11期199-202,共4页Highway

基　　金：江苏交通科学研究计划项目;项目编号04Y11

摘　　要：将硅藻精土掺配在沥青混合料中,可以改善沥青混合料的物理力学性能,提高路面工程的质量。本研究采用室内试验的方法,得出沥青混合料的低温弯曲蠕变速率,对掺加硅藻精土的沥青混合料进行低温性能研究。通过室内试验,证实硅藻精土能够很好地改善沥青混合料的低温性能,并且随着硅藻精土掺量的增加,沥青混合料低温性能的改善程度呈现出一定的规律性。The addition of diatomite can improve the physical-mechanical performance of asphalt mixture and enhance the quality of pavement engineering. An experimental investigation is undertaken in this research. The bending creep rate are tested. The low temperature performance of asphalt mixture which are filled with diatomite are studied. According to the laboratory experimental investigation, it is approved that diatomite can improve the low temperature performance of asphalt mixture and with the increasing of diatomite content the low temperature performance of asphalt mixture follows special rules.

关 键 词：硅藻精土 沥青混合料 低温性能 弯曲蠕变速率 

分 类 号：U416.2[交通运输工程—道路与铁道工程]