Influence of natural aggregates typology on recycled concrete strength properties

被引：32

作者：

Laserna, S. ^{[1
]}

Montero, J. ^{[1
]}

机构：

[1] Univ Castilla La Mancha, Higher Tech Sch Agr & Forestry Engn, Campus Univ S-N 020071, Albacete, Spain

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 115卷

关键词：

Recycled aggregate concrete; Natural aggregates influence; Strength properties; Initial moisture state; COMPRESSIVE STRENGTH; DURABILITY;

D O I：

10.1016/j.conbuildmat.2016.04.037

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper reports a study on recycled aggregates concrete to analyze the influence of using two different types of natural aggregates, river aggregates and crushed aggregates, on the strength properties of recycled aggregates concrete. A total of twenty different mixes were analyzed with an effective water/cement ratio of 0.5 and cement contents of 260-300-340 kg/m(3) for recycled rates of coarse aggregates of 0-2050-100%. The results show that the strength property depends of the type of natural aggregate used and of the recycled replacement ratio. An increment of 15% on compressive strength was obtained for river natural aggregates and 100% recycled replacement ratio, while a decrease of approximately 10-25% was observed for mixtures with crushed natural aggregates performed under similar manufacturing conditions. (c) 2016 Elsevier Ltd. All rights reserved.

引用

页码：78 / 86

页数：9

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