Use of basalt fibers for concrete structures

被引：191
|
作者：
High, Cory [1 ]
Seliem, Hatem M. [2 ]
El-Safty, Adel [3 ]
Rizkalla, Sami H. [1 ]
机构：
[1] NCSU, Dept Civil Construct & Environm Engn, Raleigh, NC USA
[2] Helwan Univ, Fac Engn, Dept Civil Engn, Cairo, Egypt
[3] Univ N Florida, Sch Engn, Jacksonville, FL USA
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2015年 / 96卷
基金：
美国国家科学基金会;
关键词：
Fibers; Basalt; Fiber-reinforced concrete; Bond; Flexure; Average residual strength;
D O I：
10.1016/j.conbuildmat.2015.07.138
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This study investigated the use of basalt fiber bars as flexural reinforcement for concrete members and the use of chopped basalt fibers as an additive to enhance the mechanical properties of concrete. The material characteristics and development length of two commercially-available basalt fiber bars were evaluated. Test results indicate that flexural design of concrete members reinforced with basalt fiber bars should ensure compression failure and satisfying the serviceability requirements. ACI 440.1R-06 accurately predicts the flexural capacity of members reinforced with basalt bars, but it significantly underestimates the deflection at service load level. Use of chopped basalt fibers had little effect on the concrete compressive strength; however, significantly enhanced its flexural modulus. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：37 / 46
页数：10
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