Experimental analysis of properties of high performance recycled aggregate concrete

被引：280

作者：

Andreu, Gonzalez ^{[1
]}

Miren, Etxeberria ^{[1
]}

机构：

[1] Univ Politecn Cataluna, Dept Construct Engn, Barcelona 08034, Spain

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 52卷

关键词：

Recycled concrete; High performance concrete; Recycled concrete aggregates; Mechanical properties; Durability properties; MECHANICAL-PROPERTIES; COMPRESSIVE STRENGTH; LIGHTWEIGHT AGGREGATE; MICROSTRUCTURE; DURABILITY;

D O I：

10.1016/j.conbuildmat.2013.11.054

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Due to the increase in the demolition of high strength concrete structures and the interest of precast concrete companies in being more competitive, it is necessary to analyse the use of recycled concrete aggregates (RCA) in high performance concrete (HPC). In this study, HPC were produced using 20%, 50% and 100% of RCA on substitution of natural coarse aggregates. Three types of RCA were used, they were produced crushing original concrete of 100, 60 and 40 MPa of compressive strength. The physical, mechanical and durability properties of the recycled aggregates concretes and conventional concrete were analyzed. The results showed that considering mechanical properties, the 100% natural coarse aggregates' replacement would be possible when RCA were produced from original concrete with a minimum compressive strength of 60 MPa. When durability properties were considered concrete produced with up to 50% of RCA could be used in HPC production. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：227 / 235

页数：9

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