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Title: Fiber-reinforced reactive magnesia-based tensile strain-hardening composites
Authors: Ruan, Shaoqin
Qiu, Jishen
Yang, En-Hua
Unluer, Cise
Keywords: DRNTU::Engineering::Civil engineering
Issue Date: 2018
Source: Ruan, S., Qiu, J., Yang, E.-H., & Unluer, C. (2018). Fiber-reinforced reactive magnesia-based tensile strain-hardening composites. Cement and Concrete Composites, 89, 52-61. doi:10.1016/j.cemconcomp.2018.03.002
Series/Report no.: Cement and Concrete Composites
Abstract: This study focuses on the development of a new strain-hardening composite (SHC) involving carbonated reactive MgO cement (RMC) and fly ash (FA) as the main binder. Rheological properties of the developed composites were investigated by varying FA and water contents to achieve desirable fiber dispersion. A suitable mix design, in which polyvinyl alcohol (PVA) fibers were introduced to provide tensile ductility, was determined. The effect of key parameters such as w/b ratio and curing age on the mechanical properties of carbonated RMC-SHC was evaluated. Adequate binder content and w/b ratio was necessary for desirable fiber dispersion. Lower water contents and longer curing ages contributed to the strength development of RMC-SHC by improving the fiber-matrix interface bond and enhancing the formation of a dense carbonate network.
ISSN: 0958-9465
DOI: 10.1016/j.cemconcomp.2018.03.002
Rights: © 2018 Elsevier Ltd. All rights reserved. This paper was published in Cement and Concrete Composites and is made available with permission of Elsevier Ltd.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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