Effect of Fibre Types on the Tensile Behaviour of Engineered Cementitious Composites

被引：13

作者：

Lan, Mingzhang ^{[1
]}

Zhou, Jian ^{[2
]}

Xu, Mingfeng ^{[2
]}

机构：

[1] Beijing Univ Technol, Coll Mat Sci & Engn, Beijing, Peoples R China

[2] Hebei Univ Technol, Sch Civil & Transportat Engn, Tianjin, Peoples R China

来源：

FRONTIERS IN MATERIALS | 2021年 / 8卷

基金：

中国国家自然科学基金;

关键词：

engineered cementitious composites; tensile behaviour; fibre-bridging behaviour; polyvinyl alcohol fibre; polypropylene fibre; MECHANICAL-PROPERTIES; MULTIPLE CRACKING; STEADY-STATE; ECC; STRENGTH; PERFORMANCE; INTERFACE; DESIGN;

D O I：

10.3389/fmats.2021.775188

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Engineered cementitious composite (ECC) is a group of ultra-ductile fibre-reinforced cementitious composites, characterised by high ductility and moderate content of short discontinuous fibre. The unique tensile strain-hardening behaviour of ECC results from a deliberate design based on the understanding of micromechanics between fibre, matrix, and fibre-matrix interface. To investigate the effect of fibre properties on the tensile behaviour of ECCs is, therefore, the key to understanding the composite mechanical behaviour of ECCs. This paper presents a study on the fibre-bridging behaviour and composite mechanical properties of ECCs with three types of fibres, including oil-coated polyvinyl alcohol (PVA) fibre, untreated PVA fibre, and polypropylene (PP) fibre. The experimental result reveals that various fibres with different properties result in difference in the fibre-bridging behaviour and composite mechanical properties of ECCs. The difference in the composite mechanical properties of ECCs with different fibres was interpreted by analysing the fibre-bridging behaviour.

引用

页数：11

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