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DC Field | Value | Language |
---|---|---|
dc.citation.startPage | 107000 | - |
dc.citation.title | JOURNAL OF BUILDING ENGINEERING | - |
dc.citation.volume | 75 | - |
dc.contributor.author | Dahal, Mandip | - |
dc.contributor.author | Oinam, Yanchen | - |
dc.contributor.author | Vashistha, Prabhat | - |
dc.contributor.author | Oh, Jae Eun | - |
dc.contributor.author | Pyo, Sukhoon | - |
dc.date.accessioned | 2023-12-21T11:44:49Z | - |
dc.date.available | 2023-12-21T11:44:49Z | - |
dc.date.created | 2023-09-12 | - |
dc.date.issued | 2023-09 | - |
dc.description.abstract | This study proposes an innovative approach to develop cementless ultra-high performance con-crete (UHPC) by activating ground granulated blast furnace slag (GGBFS) without an alkaline-activating solution. To develop cementless UHPC, calcium oxide (CaO) (5% by weight) was used to activate GGBFS, and calcium formate (CF) was used as an accelerator at concentrations rang -ing from 0 to 6 wt%. The results showed that CF significantly improved the mechanical proper -ties until 5 wt% and all the samples, including CF, exhibited a compressive strength of over 150 MPa. Uniaxial tensile tests revealed strain-hardening behavior, similar to typical cement-based UHPC. The addition of CF led to an increase in hydration products and pore size refine-ment, resulting in improved mechanical properties. The life cycle assessment results indicated that the developed UHPC mixture had nearly 70% lower CO2 emission than cement-based UHPC. The experimental results highlight the potential of this method for sustainable UHPC develop-ment. | - |
dc.identifier.bibliographicCitation | JOURNAL OF BUILDING ENGINEERING, v.75, pp.107000 | - |
dc.identifier.doi | 10.1016/j.jobe.2023.107000 | - |
dc.identifier.issn | 2352-7102 | - |
dc.identifier.scopusid | 2-s2.0-85161260519 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/65528 | - |
dc.identifier.wosid | 001054249200001 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER | - |
dc.title | Cementless ultra-high performance concrete (UHPC) using CaO- activated GGBFS and calcium formate as an accelerator | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Construction & Building Technology; Engineering, Civil | - |
dc.relation.journalResearchArea | Construction & Building Technology; Engineering | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Cementless UHPC | - |
dc.subject.keywordAuthor | CaO-activated GGBFS | - |
dc.subject.keywordAuthor | Calcium formate | - |
dc.subject.keywordAuthor | Mechanical properties | - |
dc.subject.keywordPlus | FIBER | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | HYDRATION | - |
dc.subject.keywordPlus | FRESH | - |
dc.subject.keywordPlus | ASH | - |
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