Comparative Study on Laboratory Performance of Hot- and Warm-mix Asphalt Mixtures

被引：6
|
作者：
Tan, Yiqiu [1 ]
Guo, Meng [1 ]
Xu, Huining [1 ]
Zhang, Rui [1 ]
机构：
[1] Harbin Inst Technol, Harbin 150090, Peoples R China
来源：
JOURNAL OF TESTING AND EVALUATION | 2012年 / 40卷 / 05期
基金：
中国国家自然科学基金;
关键词：
warm-mix asphalt; mix proportion design; road performance; additive; emulsifying platform; ADDITIVES; BINDERS; SASOBIT;
D O I：
10.1520/JTE20120056
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In an effort to study sustainable environmentally friendly pavement, the physical mechanics and road performance of warm-mix asphalt mixtures based on an emulsifying platform were studied via the Marshall design method. The results show that the optimum asphalt content of warm-mix asphalt mixtures is generally higher than that of hot-mix asphalt mixtures by 0.1 % to 0.2 %; the values of the stability, bulk specific gravity, air voids, and voids in mineral aggregate do not change significantly; and the number of voids filled with asphalt and the flow value increase a little. The residual stability value of warm-mix asphalt mixtures increases, whereas the freeze thaw splitting strength decreases. The high-temperature performance and seepage performance of warm-mix asphalt mixtures are similar to those of hot-mix asphalt mixtures.
引用
收藏
页码：715 / 723
页数：9
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