An experimental study on strength and toughness of steel fiber reinforced expanded-shale lightweight concrete

被引：64
|
作者：
Zhao, Minglei [1 ,2 ]
Zhao, Mingshuang [2 ]
Chen, Meihua [2 ]
Li, Jie [1 ]
Law, David [1 ]
机构：
[1] RMIT Univ, Sch Engn, Melbourne, Vic 3003, Australia
[2] North China Univ Water Resources & Elect Power, Int Joint Res Lab Ecobldg Mat & Engn Henan, 36 Beihuan Rd, Zhengzhou 450045, Henan, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 183卷
关键词：
Steel fiber reinforced expanded-shale; lightweight aggregate concrete (SFRELC); Strength; Toughness; Volume fraction of steel fiber; Cement strength; Water-binder ratio; MECHANICAL-PROPERTIES; FLEXURAL TOUGHNESS; AGGREGATE; BEHAVIOR;
D O I：
10.1016/j.conbuildmat.2018.06.178
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A steel fiber reinforced expanded-shale lightweight aggregate concrete (SFRELC) was developed by using sintered expanded shales as coarse and fine aggregates. This paper presents the experimental investigations of the fundamental mechanical properties of SFRELC under compression and flexure. The cement strength, water-binder ratio and volume fraction of steel fiber were considered as test parameters. Effects of these parameters on the compressive and flexural strengths, modulus of elasticity, compression toughness and flexural toughness are analyzed based on the expenmental results. The results manifest that the superiority of steel fibers is to enhance the deformation sustainability of SFRELC after peak-load, thus the toughness is clearly enhanced. (C) 2018 Published by Elsevier Ltd.
引用
收藏
页码：493 / 501
页数：9
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