Analysis of water and thermal sensitivity of open graded asphalt rubber mixtures

被引：41
作者：
Partl, M. N. [2 ]
Pasquini, E. [1 ]
Canestrari, F. [1 ]
Virgili, A. [1 ]
机构：
[1] Univ Politecn Marche, Dipartimento Idraul Strade Ambiente & Chim, I-60131 Ancona, Italy
[2] EMPA Duebendorf, Road Engn Sealing Components Lab, CH-8600 Dubendorf, Switzerland
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2010年 / 24卷 / 03期
关键词：
Moisture sensitivity; Temperature cycles; Asphalt rubber; Expanded clay; CoAxial Shear Test; Damage model; COAXIAL SHEAR TEST; MECHANICAL-PROPERTIES; POROUS ASPHALT; PAVEMENTS; TEMPERATURE;
D O I：
10.1016/j.conbuildmat.2009.08.041
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This research investigates the water and thermal sensitivity of two open graded mixtures prepared with asphalt rubber binder, one mixture containing lightweight aggregates (expanded clay) replacing a part of coarse fraction. Fatigue tests using the CoAxial Shear Test (CAST) apparatus were performed in both dry and wet conditions with and without temperature cycles. Results showed that fatigue resistance of the studied materials was only little affected by water and temperature cycles and superior to traditional open graded mixtures produced with SBS modified bitumen only. The results were also validated and modelled by means of an elasticity-based damage model. (C) 2009 Elsevier Ltd. All rights reserved.
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页码：283 / 291
页数：9
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