Behaviour of engineered cementitious composites and hybrid engineered cementitious composites at high temperatures

被引：83
|
作者：
Pourfalah, S. [1 ]
机构：
[1] Heriot Watt Univ, Sch Energy Geosci Infrastruct & Soc, Edinburgh EH14 4AS, Midlothian, Scotland
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 158卷
关键词：
Engineered cementitious composites; Hybrid engineered cementitious composites; ECC; PVA fibre; Steel fibre; High temperature; Compression; Bending; Tensile; Finite element modelling; FIBER;
D O I：
10.1016/j.conbuildmat.2017.10.077
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The behaviour of engineered cementitious composites (ECC) specimens using polyvinyl alcohol (PVA) fibres and hybrid engineered cementitious composites (HECC) using PVA fibres and steel fibres (two different types) was experimentally investigated. The experiments included compression and flexural tests at different temperatures ranging from 20 degrees C to 600 degrees C. Under uniaxial compression load the HECCs specimens produced less debris (from 200 degrees C to 600 degrees C) compared to ECC counterparts. The flexural tests results revealed that the load bearing capacity and deflection of HECCs specimens were less vulnerable up to 100 degrees C compared to ECC specimens. Under higher temperatures the ECC specimens' behaviour was brittle, while HECCs specimens exhibited a deflection-softening behaviour. Then a finite element model was employed to investigate the flexural tests results obtained from experiments. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：921 / 937
页数：17
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