Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/159450
Title: Strain hardening magnesium-silicate-hydrate composites (SHMSHC) reinforced with short and randomly oriented polyvinyl alcohol microfibers
Authors: Sonat, Cem
He, Shan
Li, Junxia
Unluer, Cise
Yang, En-Hua
Keywords: Engineering::Civil engineering
Issue Date: 2021
Source: Sonat, C., He, S., Li, J., Unluer, C. & Yang, E. (2021). Strain hardening magnesium-silicate-hydrate composites (SHMSHC) reinforced with short and randomly oriented polyvinyl alcohol microfibers. Cement and Concrete Research, 142, 106354-. https://dx.doi.org/10.1016/j.cemconres.2021.106354
Project: MOE2017-T2-1-087 (S)
Journal: Cement and Concrete Research
Abstract: Magnesium-silicate-hydrate (M-S-H) cement has emerged as an alternative binder with potentially lower energy requirements and emissions. Due to the intrinsically low pH values of its matrix, however, normal steel reinforcement is not appropriate for M-S-H system. To toughen the matrix and to overcome the brittle nature of the material, a new strain hardening magnesium-silicate-hydrate composite (SHMSHC) is developed for the first time by incorporating 2 vol% short and randomly oriented polyvinyl alcohol (PVA) microfibers. The resulting SHMSHC exhibits significant strain hardening with a tensile strain capacity of more than 3%, a compressive strength beyond 50 MPa and a tensile strength of around 3 MPa. Remarkably, saturated multiple cracking with a tight crack width less than 10 μm invisible to the human naked eyes was observed. The newly developed SHMSHC addresses the fundamental challenge of M-S-H binder and is expected to widen possible application areas of M-S-H system.
URI: https://hdl.handle.net/10356/159450
ISSN: 0008-8846
DOI: 10.1016/j.cemconres.2021.106354
Rights: © 2021 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles

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