Full metadata record
DC Field | Value | Language |
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dc.citation.startPage | 102859 | - |
dc.citation.title | JOURNAL OF CO2 UTILIZATION | - |
dc.citation.volume | 84 | - |
dc.contributor.author | Yonis, Aidarus | - |
dc.contributor.author | Vashistha, Prabhat | - |
dc.contributor.author | Oinam, Yanchen | - |
dc.contributor.author | Cyr, Martin | - |
dc.contributor.author | Pyo, Sukhoon | - |
dc.date.accessioned | 2024-08-21T09:35:10Z | - |
dc.date.available | 2024-08-21T09:35:10Z | - |
dc.date.created | 2024-08-19 | - |
dc.date.issued | 2024-06 | - |
dc.description.abstract | This experimental study investigates a novel approach to utilize waste concrete powder (WCP) in conjunction with metakaolin as a precursor in the production of alkali-activated binder for sustainable consumption of construction and demolition waste. A Chapelle test confirms the presence of reactive silica in thermomechanically activated WCP. Different alkali-activated mixtures with metakaolin replacement ranging from 0 % to 80 % were prepared. The mixture with 40 % activated WCP, with a sodium silicate to sodium hydroxide ratio of 2, achieved better compressive strength than the reference sample without WCP. Mineralogical analysis of the mixture pastes revealed that activated WCP-based mixtures developed geopolymer gel and C-S-H gel, contributing to better strength properties in the case of the mixture with 40 % activated WCP. Life cycle analysis demonstrated that incorporating 40 % thermo-mechanically activated WCP by replacing metakaolin reduces carbon dioxide emissions by 49.5 % and 2.2 % compared to Portland cement and metakaolin-based binder, respectively. | - |
dc.identifier.bibliographicCitation | JOURNAL OF CO2 UTILIZATION, v.84, pp.102859 | - |
dc.identifier.doi | 10.1016/j.jcou.2024.102859 | - |
dc.identifier.issn | 2212-9820 | - |
dc.identifier.scopusid | 2-s2.0-85197419829 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/83542 | - |
dc.identifier.wosid | 001282663000001 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Novel utilization of waste concrete powder in alkali-activated binder | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Engineering, Chemical | - |
dc.relation.journalResearchArea | Chemistry; Engineering | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Mineralogical analysis | - |
dc.subject.keywordAuthor | Hydration analysis | - |
dc.subject.keywordAuthor | LCA analysis | - |
dc.subject.keywordAuthor | Waste concrete powder | - |
dc.subject.keywordAuthor | Alkali-activated binder | - |
dc.subject.keywordPlus | CALCIUM SILICATE HYDRATE | - |
dc.subject.keywordPlus | FLY-ASH | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | GEOPOLYMERIC BINDER | - |
dc.subject.keywordPlus | INFRARED-SPECTROSCOPY | - |
dc.subject.keywordPlus | PORTLAND-CEMENT | - |
dc.subject.keywordPlus | ALITE HYDRATION | - |
dc.subject.keywordPlus | PORE STRUCTURE | - |
dc.subject.keywordPlus | CONSTRUCTION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
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