基于低温流变特性的沥青低温性能评价方法研究  

Research on evaluations approach to low-temperature performance of asphalt based on rheology characteristic of low temperature

作　　者：谭忆秋[1] 邵显智 张肖宁[2] 

机构地区：[1]哈尔滨工业大学交通科学与工程学院,黑龙江哈尔滨150090 [2]华南理工大学交通学院,广东广州510641

出　　处：《中国公路学报》2002年第3期1-5,共5页China Journal of Highway and Transport

基　　金：国家自然科学基金项目 (5 0 0 0 80 0 5 )

摘　　要：利用自行开发的滑板测粘系统 ,首先在较大的温度范围和较广的剪应力作用范围内对沥青的低温流变规律进行了比较全面、系统的研究 ;在此基础上 ,提出了沥青低温性能的评价方法 ;并通过与多种不同产源、不同炼制工艺的沥青实际使用情况相比较 ,与 SHRP推荐的评价方法以及沥青混合料的低温性能相比较 ,证明了该评价方法的准确性和敏感性。The rheology characteristic of asphalt in low temperature plays an important role in performance of asphalt pavement in low temperature, so how to appraising the low temperature property based on the rheology law of asphalt is a hot topic. By the means of self developed Sliding Plate Viscometer System(SPVS), firstly, the low temperature rheology law of asphalt was studied roundly and systemically under the wide range of temperature and shear stress;based on it,approaches to appraise the properties of low temperature of asphalt whose crude oil is different and refined technology is different were put forward; meanwhile, the veracity and sensitivity of appraising methods were verified by compared with the performance in practice of asphalt and other appraising result such as by SHRP methods and active methods in our country,as well as with performance of low temperature of asphalt mixture.

关 键 词：低温性能 沥青 低温流变特性 评价方法 沥青路面 

分 类 号：U414.75[交通运输工程—道路与铁道工程] U416.217