Study of characteristic specification on mixed mode fracture toughness of asphalt mixtures

被引：180
作者：
Aliha, M. R. M. [1 ]
Behbahani, H. [2 ]
Fazaeli, H. [2 ]
Rezaifar, M. H. [2 ]
机构：
[1] IUST, Sch Ind Engn, Welding & Joining Res Ctr, Tehran 1684613114, Iran
[2] IUST, Dept Civil Engn, Tehran 1684613114, Iran
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 54卷
关键词：
Asphalt characteristic specifications; Mixed mode I/II; Fracture toughness experiments; SCB specimen; Low temperature; NOTCHED ROUND BARS; BRITTLE-FRACTURE; STRAIN-ENERGY; ISOSTATIC GRAPHITE; BENDING TEST; V-NOTCHES; RESISTANCE; CONCRETE; SPECIMEN; TENSION;
D O I：
10.1016/j.conbuildmat.2013.12.097
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Low temperature cracking is one of the main deterioration and failure modes for pavements. Hence, in this paper the effect of asphalt characteristic on its mixed mode I/II low temperature fracture toughness is investigated experimentally. A large number of edge cracked semi circular bend specimens subjected to asymmetric three-point bend loading were tested for different hot mix asphalt mixtures made of various compositions. The influence of aggregate type and size, binder type and air void content were studied on the critical stress intensity factors of four mode mixtures ranging from pure mode I to pure mode II. The fracture toughness results showed the noticeable influence of asphalt characteristic specifications on the low temperature cracking behaviour of mixtures subjected to mixed mode loading. (C) 2014 Elsevier Ltd. All rights reserved.
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收藏
页码：623 / 635
页数：13
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