Effects of recycled concrete aggregate on stiffness and rutting resistance of asphalt concrete

被引：52

作者：

Radevic, Aleksandar ^{[1
]}

Durekovic, Aleksandar ^{[2
]}

Zakic, Dimitrije ^{[1
]}

Mladenovic, Goran ^{[1
]}

机构：

[1] Univ Belgrade, Fac Civil Engn, Bulevar kralja Aleksandra 73, Belgrade 11000, Serbia

[2] Publ Enterprise Roads Serbia, Bulevar kralja Aleksandra 282, Belgrade 11000, Serbia

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 136卷

关键词：

Asphalt mixture; Recycled concrete aggregate; Stiffness modulus; Permanent deformation; Optimum bitumen content; HOT-MIX ASPHALT; WASTE CONCRETE; MIXTURE;

D O I：

10.1016/j.conbuildmat.2017.01.043

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The objective of this research was to assess the possibility of using recycled concrete aggregate (RCA) in asphalt mixtures. The experimental research included 10 asphalt mixtures with partial natural aggregate substitution by RCA, which ranged from 15% to 45% of fine (<= c.4 mm), coarse (4/22.4 mm) and both fine and coarse aggregate. The optimum bitumen content increased with increasing RCA content. The use of RCA had no significant influence on the permanent deformation, while the stiffness modulus of asphalt mixtures with RCA was lower compared with the control mixture, especially at high frequencies. The results indicate that RCA can be successfully used in asphalt mixtures. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：386 / 393

页数：8

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