Shrinkage and flexural behaviour of free and restrained hybrid steel fibre reinforced concrete

被引:28
作者
Al-Kamyani, Zahran [1 ]
Figueiredo, Fabio P. [1 ]
Hu, Hang [1 ]
Guadagnini, Maurizio [1 ]
Pilakoutas, Kypros [1 ]
机构
[1] Dept Civil & Struct Engn, Sir Frederick Mappin Bldg,Mappin St, Sheffield S1 3JD, S Yorkshire, England
关键词
Shrinkage; Restrained shrinkage; Shrinkage curvature; FRC; Residual strength; DRYING SHRINKAGE; AUTOGENOUS SHRINKAGE; POSTCRACKING BEHAVIOR; MECHANICAL-PROPERTIES; WASTE TIRES; CRACKING; CREEP; MORTAR; SLAG;
D O I
10.1016/j.conbuildmat.2018.09.052
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The effect of restrained shrinkage on the mechanical performance of concrete and steel fibre reinforced concrete (SFRC) requires more investigation, especially when using recycled tyre steel fibre (RTSF). This paper examines the free and restrained shrinkage strains and the mechanical performance of seven SFRC mixes. Results show that both free and restrained average shrinkage strains are very similar in all blends of fibres and they exhibited non-uniform shrinkage through the height of the section. All examined blends meet strength requirements by MC-2010 for fibres to replace part of the conventional reinforcement in RC structures. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1007 / 1018
页数:12
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