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http://dx.doi.org/10.7234/composres.2016.29.6.328

Design of Fiber Reinforced Cement Matrix Composite Produced with Limestone Powder and Flexural Performance of Structural Members  

Hyun, Jung-Hwan (Department of Civil Engineering, Chungnam National University)
Kim, Yun-Yong (Department of Civil Engineering, Chungnam National University)
Publication Information
Composites Research / v.29, no.6, 2016 , pp. 328-335 More about this Journal
Abstract
The purpose of this study is to develop fiber reinforced cement matrix composite (ECC) produced with limestone powder in order to achieve high ductility of the composite, and to evaluate flexural performance of structural members made with ECC. Four kinds of mixture proportions were determined on the basis of the micromechanics and a steady state cracking theory considering the matrix fracture toughness and fiber-matrix interfacial characteristics. The mechanical properties of ECC, represented by strain-hardening behavior in uniaxial tension, were investigated. Also, strength property of the composite was experimentally evaluated. Two structural members made with ECC were produced and tested. Test results were compared with those of conventional concrete structural members. Increased limestone powder contents of ECC provides higher ductility of the composites while generally resulting in a lower strength property. ECC structural members exhibited higher flexural ductility, higher flexural load-carrying capacity and tighter crack width compared to conventional structural members.
Keywords
ECC; Composite materials; Flexural members; Ductility; Limestone powder;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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