Fiber-reinforced reactive magnesia-based tensile strain-hardening composites
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 dispers...
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sg-ntu-dr.10356-900952020-03-07T11:43:39Z Fiber-reinforced reactive magnesia-based tensile strain-hardening composites Ruan, Shaoqin Qiu, Jishen Yang, En-Hua Unluer, Cise School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering Rheology MgO 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. MOE (Min. of Education, S’pore) Accepted version 2019-05-28T03:51:39Z 2019-12-06T17:40:33Z 2019-05-28T03:51:39Z 2019-12-06T17:40:33Z 2018 Journal Article 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 0958-9465 https://hdl.handle.net/10356/90095 http://hdl.handle.net/10220/48404 10.1016/j.cemconcomp.2018.03.002 en Cement and Concrete Composites © 2018 Elsevier Ltd. All rights reserved. This paper was published in Cement and Concrete Composites and is made available with permission of Elsevier Ltd. 35 p. application/pdf |
| institution |
Nanyang Technological University |
| building |
NTU Library |
| country |
Singapore |
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DR-NTU |
| language |
English |
| topic |
DRNTU::Engineering::Civil engineering Rheology MgO |
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DRNTU::Engineering::Civil engineering Rheology MgO Ruan, Shaoqin Qiu, Jishen Yang, En-Hua Unluer, Cise Fiber-reinforced reactive magnesia-based tensile strain-hardening composites |
| description |
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. |
| author2 |
School of Civil and Environmental Engineering |
| author_facet |
School of Civil and Environmental Engineering Ruan, Shaoqin Qiu, Jishen Yang, En-Hua Unluer, Cise |
| format |
Article |
| author |
Ruan, Shaoqin Qiu, Jishen Yang, En-Hua Unluer, Cise |
| author_sort |
Ruan, Shaoqin |
| title |
Fiber-reinforced reactive magnesia-based tensile strain-hardening composites |
| title_short |
Fiber-reinforced reactive magnesia-based tensile strain-hardening composites |
| title_full |
Fiber-reinforced reactive magnesia-based tensile strain-hardening composites |
| title_fullStr |
Fiber-reinforced reactive magnesia-based tensile strain-hardening composites |
| title_full_unstemmed |
Fiber-reinforced reactive magnesia-based tensile strain-hardening composites |
| title_sort |
fiber-reinforced reactive magnesia-based tensile strain-hardening composites |
| publishDate |
2019 |
| url |
https://hdl.handle.net/10356/90095 http://hdl.handle.net/10220/48404 |
| _version_ |
1681049002612621312 |