Substitutive effect of nano-SiO2 for silica fume in ultra-high-performance concrete on fiber pull-out behavior
DC Field | Value | Language |
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dc.contributor.author | Oh, Taekgeun | - |
dc.contributor.author | Chun, Booki | - |
dc.contributor.author | Lee, Seung Kyun | - |
dc.contributor.author | Lee, Wonkyo | - |
dc.contributor.author | Banthia, Nemkumar | - |
dc.contributor.author | Yoo, Doo-Yeol | - |
dc.date.accessioned | 2023-06-01T06:55:47Z | - |
dc.date.available | 2023-06-01T06:55:47Z | - |
dc.date.created | 2022-11-02 | - |
dc.date.issued | 2022-09 | - |
dc.identifier.issn | 2238-7854 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/185806 | - |
dc.description.abstract | This study investigated the effect of substituting nano-SiO2 for silica fume on the fibermatrix interfacial bond performance of ultra-high-performance concrete (UHPC). In this study, silica fume was substituted by nano-SiO2 in the weight range of 0-50%. The degree of pozzolanic reaction of binder materials was evaluated using the thermogravimetric analysis (TGA) and compressive strength measurement. The single fiber pull-out test was conducted along with a measurement of autogenous shrinkage to evaluate the interfacial bond. The degree of pozzolanic reaction of nano-SiO2 was found to be higher than that of other binder materials. Although the packing density was predicted to increase continuously up to a substitution ratio of 50%, the highest compressive strength was obtained when 10% of silica fume was replaced by nano-SiO2 which improved the compressive strength by 5.9% compared to that of the plain sample. The autogenous shrinkage increased with an increasing content of nano-SiO2 up to 30%; however, it remained similar beyond the nanoSiO(2) content of 30%. The best pull-out performance was obtained when 20% of silica fume was replaced by nano-SiO2, in which the average bond strength and pull-out energy were improved by approximately 21 and 68%, respectively. Therefore, substitution of 10-20% of silica fume by nano-SiO2 was recommended as an optimal amount considering the improvements of the compressive strength and fiber-matrix bond performance of UHPC. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.title | Substitutive effect of nano-SiO2 for silica fume in ultra-high-performance concrete on fiber pull-out behavior | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yoo, Doo-Yeol | - |
dc.identifier.doi | 10.1016/j.jmrt.2022.08.013 | - |
dc.identifier.scopusid | 2-s2.0-85139482031 | - |
dc.identifier.wosid | 000864727100002 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, v.20, pp.1993 - 2007 | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | - |
dc.citation.title | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | - |
dc.citation.volume | 20 | - |
dc.citation.startPage | 1993 | - |
dc.citation.endPage | 2007 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | NANO-SILICA | - |
dc.subject.keywordPlus | FLY-ASH | - |
dc.subject.keywordPlus | HYDRATION | - |
dc.subject.keywordPlus | MICROSTRUCTURE | - |
dc.subject.keywordPlus | ADMIXTURE | - |
dc.subject.keywordAuthor | Ultra-high-performance concrete | - |
dc.subject.keywordAuthor | Nano-SiO2 | - |
dc.subject.keywordAuthor | Compressive strength | - |
dc.subject.keywordAuthor | Autogenous shrinkage behavior | - |
dc.subject.keywordAuthor | Single fiber pullout behavior | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S2238785422012467?via%3Dihub | - |
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