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Article: Uniaxial Tensile Behavior of Carbon Textile Reinforced Mortar

TitleUniaxial Tensile Behavior of Carbon Textile Reinforced Mortar
Authors
KeywordsCarbon textile reinforced mortar
Debonding failure
Multi-cracking pattern
Prestress
Steel fibers
Issue Date2019
PublisherMDPIAG. The Journal's web site is located at http://www.mdpi.com/journal/materials/
Citation
Materials, 2019, v. 12 n. 3, article no. 374 How to Cite?
AbstractThis paper investigates the effects of the reinforcement ratio, volume fraction of steel fibers, and prestressing on the uniaxial tensile behavior of carbon textile reinforced mortar (CTRM) through uniaxial tensile tests. The results show that the tensile strength of CTRM specimens increases with the reinforcement ratio, however the textile-matrix bond strength becomes weaker and debonding can occur. Short steel fibers are able to improve the mechanical properties of the entire CTRM composite and provide additional 'shear resistant ability' to enhance the textile-matrix bond strength, resulting in finer cracks with smaller spacing and width. Investigations into the fracture surfaces using an optical microscope clarify these inferences. Increases in first-crack stress and tensile strength are also observed in prestressed TRM specimens. In this study, the combination of 1% steel fibers and prestressing at 15% of the ultimate tensile strength of two-layer textiles is found to be the optimum configuration, producing the highest first-crack stress and tensile strength and the most reasonable multi-cracking pattern. © 2018 by the authors.
Persistent Identifierhttp://hdl.handle.net/10722/274845
ISSN
2018 Impact Factor: 2.972
2015 SCImago Journal Rankings: 0.873
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhou, F-
dc.contributor.authorLiu, H-
dc.contributor.authorDu, Y-
dc.contributor.authorLiu, L-
dc.contributor.authorZhu, D-
dc.contributor.authorPan, W-
dc.date.accessioned2019-09-10T02:30:03Z-
dc.date.available2019-09-10T02:30:03Z-
dc.date.issued2019-
dc.identifier.citationMaterials, 2019, v. 12 n. 3, article no. 374-
dc.identifier.issn1996-1944-
dc.identifier.urihttp://hdl.handle.net/10722/274845-
dc.description.abstractThis paper investigates the effects of the reinforcement ratio, volume fraction of steel fibers, and prestressing on the uniaxial tensile behavior of carbon textile reinforced mortar (CTRM) through uniaxial tensile tests. The results show that the tensile strength of CTRM specimens increases with the reinforcement ratio, however the textile-matrix bond strength becomes weaker and debonding can occur. Short steel fibers are able to improve the mechanical properties of the entire CTRM composite and provide additional 'shear resistant ability' to enhance the textile-matrix bond strength, resulting in finer cracks with smaller spacing and width. Investigations into the fracture surfaces using an optical microscope clarify these inferences. Increases in first-crack stress and tensile strength are also observed in prestressed TRM specimens. In this study, the combination of 1% steel fibers and prestressing at 15% of the ultimate tensile strength of two-layer textiles is found to be the optimum configuration, producing the highest first-crack stress and tensile strength and the most reasonable multi-cracking pattern. © 2018 by the authors.-
dc.languageeng-
dc.publisherMDPIAG. The Journal's web site is located at http://www.mdpi.com/journal/materials/-
dc.relation.ispartofMaterials-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectCarbon textile reinforced mortar-
dc.subjectDebonding failure-
dc.subjectMulti-cracking pattern-
dc.subjectPrestress-
dc.subjectSteel fibers-
dc.titleUniaxial Tensile Behavior of Carbon Textile Reinforced Mortar-
dc.typeArticle-
dc.identifier.emailPan, W: wpan@hku.hk-
dc.identifier.authorityPan, W=rp01621-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.3390/ma12030374-
dc.identifier.pmid30691009-
dc.identifier.scopuseid_2-s2.0-85060618469-
dc.identifier.hkuros302555-
dc.identifier.volume12-
dc.identifier.issue3-
dc.identifier.spagearticle no. 374-
dc.identifier.epagearticle no. 374-
dc.identifier.isiWOS:000460768000043-
dc.publisher.placeSwitzerland-

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