A laboratory study on stone matrix asphalt using ground tire rubber

被引：90

作者：

Chiu, Chui-Te ^{[1
]}

Lu, Li-Cheng ^{[1
]}

机构：

[1] Chung Hua Univ, Dept Civil Engn, Hsinchu 300, Taiwan

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2007年 / 21卷 / 05期

关键词：

ground tire rubber; asphalt rubber; stone matrix asphalt; rutting;

D O I：

10.1016/j.conbuildmat.2006.02.005

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This research investigated the feasibility using asphalt rubber (AR), produced by blending ground tire rubber (GTR) with an asphalt, as a binder for stone matrix asphalt (SMA). Two different sizes of GTR produced in Taiwan were used. The potential performance of AR-SMA mixtures was also evaluated. The results of this study showed that it was not feasible to produce a suitable SMA mixture using an asphalt rubber made by blending an AC-20 with 30% coarse GTR with a maximum size of 0.85 mm. However, SMA mixtures meeting typical volumetric requirements for SMA could be produced using an asphalt rubber containing 20% of a fine GTR with a maximum size of 0.6 mm. No fiber was needed to prevent drain-down when this asphalt rubber was used. The AR-SMA mixtures were not significantly different from the conventional SMA mixtures in terms of moisture susceptibility from the results of AASHTO T283 tests. The results of the wheel tracking tests at 60 degrees C show that rutting resistance of AR-SMA mixtures was better than that of the conventional SMA mixtures. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1027 / 1033

页数：7