Effect of laboratory long-term oven aging on the stiffness of asphalt mixtures

被引：14
|
作者：
Li, X-J [1 ]
Li, Yinyong [2 ]
Li, Jin [1 ]
Shen, Yuxiang [3 ]
Zhang, Chunhai [4 ]
Wei, Jincheng [5 ]
机构：
[1] Shandong Jiaotong Univ, Sch Civil Engn, 5001 Haitang Rd, Jinan 250357, Shandong, Peoples R China
[2] Shandong Prov Transportat Serv Ctr, Jinan, Shandong, Peoples R China
[3] Rizhao Transportat Dev Grp Ltd, Rizhao, Peoples R China
[4] Rizhao City Transportat Serv Ctr, Rizhao, Peoples R China
[5] Shandong Transportat Res Inst, Jinan, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 258卷 / 258期
关键词：
Asphalt mixture; Long-term oven aging; Stiffness; Dynamic modulus; Dynamic modulus ratio;
D O I：
10.1016/j.conbuildmat.2020.120252
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This study evaluates the effect of laboratory long-term oven aging (LTOA) on the stiffness of asphalt mixture using laboratory dynamic modulus test. A large variety of materials was subjected to diverse LTOA conditions including different aging temperatures and durations with loose mixture and compacted samples. Dynamic modulus master curve and dynamic modulus ratio (DMR) data shows that the aging of loose mixture at 95 degrees C could be an ideal LTOA procedure with the efficiency and capability to characterize the long-term aging in the field. The variety of materials including the use of recycled asphalt pavement, warm mix asphalt technologies and asphalt binder performance grade was also found to have appreciable effect on the LTOA properties. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：9
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