The effect of nanoclay as bitumen modifier on rutting performance of asphalt mixtures containing high content of rejuvenated reclaimed asphalt pavement

被引：31
|
作者：
Ziari, Hassan [1 ]
Moniri, Ali [2 ]
Norouzi, Navid [2 ]
机构：
[1] IUST, Sch Civil Engn, ABRC, Tehran, Iran
[2] IUST, Sch Civil Engn, Tehran, Iran
来源：
PETROLEUM SCIENCE AND TECHNOLOGY | 2019年 / 37卷 / 17期
关键词：
reclaimed asphalt pavement (RAP); rejuvenator; nanoclay; rutting performance; bitumen modification; MOISTURE SUSCEPTIBILITY; RESISTANCE;
D O I：
10.1080/10916466.2018.1471489
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Using some kinds of rejuvenators to restore the characteristics of aged binder in reclaimed asphalt pavement might lead to reduction in rutting resistance. In this research, nanocaly was used as virgin bitumen modifier to compensate for the negative effect of rejuvenator in asphalt mixtures containing high percentages of reclaimed asphalt pavement. For this purpose, dynamic creep test was conducted on the mixtures containing 2%, 4% and 6% modified NC and 25%, 50%, 75% RAP. Laboratory test results indicated that the reduction of flow number due to adding rejuvenator in the mixture can be compensated by using nanoclay modified virgin bitumen.
引用
收藏
页码：1946 / 1951
页数：6
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