Effects of Water/Binder Ratio on the Properties of Engineered Cementitious Composites

被引：24
|
作者：
Yang Yingzi [1 ,2 ]
Gao Xiaojian [1 ]
Deng Hongwei [1 ]
Yu Pengzhan [1 ]
Yao Yan [2 ]
机构：
[1] Harbin Inst Technol, Sch Civil Engn, Harbin 150001, Peoples R China
[2] China Bldg Mat Acad, Beijing 100024, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2010年 / 25卷 / 02期
基金：
中国国家自然科学基金;
关键词：
engineered cementitious composites (ECC); toughness; water/binder ratio; compressive strength; TENSILE;
D O I：
10.1007/s11595-010-2298-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of water/binder ratio (w/b) on the toughness behavior, compressive strength and flexural strength of engineered cementitious composites (ECC) were investigated. The w/b ratios of 0.25, 0.31, 0.33 and 0.37 were selected and the specimens were tested at the ages of 7 d and 28 d. The experimental results showed that there was a corresponding increase in first cracking strength, modulus of rupture, compressive strength and flexural strength with the decrease of w/b. Within the w/b range of 0.25-0.37, higher w/b was found to have improved effects on deflection, strain hardening index and toughness index of ECC. In the permission of meeting the requirement of compressive strength grade, selecting higher w/b in mix design will help to obtain robust ECC.
引用
收藏
页码：298 / 302
页数：5
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