Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139834
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dc.contributor.authorLiu, Jin-Chengen_US
dc.contributor.authorTan, Kang Haien_US
dc.date.accessioned2020-05-22T03:39:00Z-
dc.date.available2020-05-22T03:39:00Z-
dc.date.issued2018-
dc.identifier.citationLiu, J.-C., & Tan, K. H. (2018). Mechanism of PVA fibers in mitigating explosive spalling of engineered cementitious composite at elevated temperature. Cement and Concrete Composites, 93, 235-245. doi:10.1016/j.cemconcomp.2018.07.015en_US
dc.identifier.issn0958-9465en_US
dc.identifier.urihttps://hdl.handle.net/10356/139834-
dc.description.abstractPolyvinyl alcohol (PVA) fibers have been found effective in preventing explosive spalling of engineered cementitious composite (ECC) under fire loading. However, the fundamental mechanism of minimizing the spalling risk by adding PVA fibers remains unclear. Thus, this paper addresses the mode of action of PVA fibers in combating explosive spalling of ECC at high temperature. In this regard, hot permeability of ECC and mortar was measured. PVA fibers were found to increase hot permeability of ECC significantly before their melting. Microstructure and EDX analysis were conducted to achieve a better understanding of how PVA fibers actually function to increase hot permeability before melting. The enlarged empty zones around the PVA fibers were the reason for the significant increase in permeability. Residue from melted PVA fibers was observed on the channel walls and did not diffuse into the matrix. For the first time laser distance meter was used to record progressive spalling history in heated samples. An in-depth discussion on the relationship between temperature, pore pressure, and spalling was also provided.en_US
dc.language.isoenen_US
dc.relation.ispartofCement and Concrete Compositesen_US
dc.rights© 2018 Elsevier Ltd. All rights reserved.en_US
dc.subjectEngineering::Civil engineeringen_US
dc.titleMechanism of PVA fibers in mitigating explosive spalling of engineered cementitious composite at elevated temperatureen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.identifier.doi10.1016/j.cemconcomp.2018.07.015-
dc.identifier.scopus2-s2.0-85050871033-
dc.identifier.volume93en_US
dc.identifier.spage235en_US
dc.identifier.epage245en_US
dc.subject.keywordsECCen_US
dc.subject.keywordsHigh Temperatureen_US
item.fulltextNo Fulltext-
item.grantfulltextnone-
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