Fatigue performance of terminal blend rubberized asphalt mixture

被引：4

作者：

机构：

[1] Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai

[2] Sichuan Communication Surveying and Design Institute, Chengdu

[3] Shanghai Municipal Engineering Design Institute(Group) Co. Ltd., Shanghai

来源：

Huang, Weidong (hwd@tongji.edu.cn) | 1600年 / Science Press卷 / 42期

关键词：

Compound modified asphalt; Fatigue performance; Four-point bending beam fatigue test; Terminal blend rubberized asphalt mixture;

D O I：

10.11908/j.issn.0253-374x.2014.10.013

中图分类号：

学科分类号：

摘要：

The fatigue performance of terminal blend rubberized asphalt mixture was researched by BFA which was selected to do four-point bending beam fatigue tests. The fatigue performance considering self-healing between Terminal Blend-AC13 and SBS-AC13 was compared which had the same air voids. Further research was done on fatigue performance and high temperature performance of the compound modified asphalt mixture though mixing SBS into terminal blend rubberized asphalt. The results show that NfNM is more suitable than Nf50 to be the fatigue damage standard for terminal blend asphalt mixtures. The correlation of terminal blend asphalt mixture's fatigue performance and three factors which are strain, asphalt content and air void ratio is researched. Terminal blend asphalt mixture AC13's fatigue equations is regressed. Regardless of whether the self-healing is considered, when the air voids of mixture is 4%, SBS-AC13 has longer fatigue life than TB-AC13, but TB-AC13 gets better self-healing capability. Regardless of whether the self-healing is considered, when the air voids of mixture is 4%, the fatigue life of TB+SBS-AC13 is twice as much as the fatigue life of SBS-AC13, and also TB+SBS-AC13 gets better self-healing capability than SBS-AC13. The high temperature performance of TB+SBS-AC13 can far exceed the SBS-AC13.

引用

页码：1543 / 1549

页数：6

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