Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.cemconcomp.2013.06.006
Title: Flexural performance of fiber-reinforced ultra lightweight cement composites with low fiber content
Authors: Wang, J.-Y. 
Chia, K.-S. 
Liew, J.-Y.R. 
Zhang, M.-H. 
Keywords: Flexural performance
Polyethylene fiber
Shrinkage reducing admixture
Steel fiber
Ultra lightweight cement composite
Issue Date: 2013
Source: Wang, J.-Y., Chia, K.-S., Liew, J.-Y.R., Zhang, M.-H. (2013). Flexural performance of fiber-reinforced ultra lightweight cement composites with low fiber content. Cement and Concrete Composites 43 : 39-47. ScholarBank@NUS Repository. https://doi.org/10.1016/j.cemconcomp.2013.06.006
Abstract: This paper presents an experimental study on flexural performance of ultra lightweight cement composites (ULCC) with 0.5 vol% fibers. Low density of the ULCC is achieved by using cenospheres from coal-fired power plants as micro aggregates. Effects of shrinkage reducing admixture (SRA) and fiber types on compressive strength and flexural performance of the ULCC are investigated. ULCC with density of 1474 kg/m3, compressive strengths of 68.2 MPa, flexural strength of 8 MPa, and deflection hardening behavior can be produced. Such good performance could be attributed primarily to the SRA which reduced entrapped air in paste matrix and densified fiber-matrix interface. The improvement on the flexural performance of the ULCC depends on fibers used and bond between fibers and matrix. Improvement of the flexural performance of the steel fiber (coated with brass) reinforced ULCC due to the densification effect by SRA was more significant than that of the PE fiber reinforced ULCC. © 2013 Published by Elsevier Ltd. All rights reserved.
Source Title: Cement and Concrete Composites
URI: http://scholarbank.nus.edu.sg/handle/10635/90976
ISSN: 09589465
DOI: 10.1016/j.cemconcomp.2013.06.006
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