Properties of cementless binders using desulfurization slag as an alkali activator
DC Field | Value | Language |
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dc.contributor.author | Cho, Bong Suk | - |
dc.contributor.author | Choi, Young Cheol | - |
dc.date.available | 2020-02-27T15:43:03Z | - |
dc.date.created | 2020-02-06 | - |
dc.date.issued | 2018 | - |
dc.identifier.issn | 1229-9162 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/5229 | - |
dc.description.abstract | The alkali stimulus provided by the Ca(OH)(2) contained in desulfurization slag (DS), a byproduct generated in the preliminary treatment of molten iron and composed of Ca(OH)(2), CaCO3, and 2CaO center dot SiO2, is used to cause a cement-free binder to harden by serving as an alkali activator for ground, granulated blast-furnace slag (BFS). The 28-day compressive strength of the BFS-DS binder was found to be about 30% that of ordinary Portland cement (OPC), but the 28-day strength of a binder made from BFS, DS, and anhydrous gypsum (G) was found to be similar to that of OPC. It is confirmed that BFS-DS-G binders have very low hydration heat, which is of use in reducing the heat generated during the curing of mass concrete. The main hydration product of the BFS-DS-G binder is found to be ettringite. Scanning electron microscope images reveal that the needle-shaped ettringite formed in the BFS-DS-G binder is much thicker than that formed in OPC. This thick, needle-shaped ettringite forms a skeletal structure, providing structural stability, and fills the gaps between hydration products such as calcium silicate hydrates and calcium aluminum hydrates, making it highly effective in forming a dense structure. The widespread use of BFS-DS-G binders would result in the value-added utilization of byproducts from the iron & steel making process, and provide an environmentally friendly and more economical construction material, and contribute to a reduction in CO2 emissions generated by the cement industry. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | KOREAN ASSOC CRYSTAL GROWTH, INC | - |
dc.relation.isPartOf | JOURNAL OF CERAMIC PROCESSING RESEARCH | - |
dc.subject | BLAST-FURNACE SLAG | - |
dc.subject | FLY-ASH | - |
dc.subject | ENGINEERING PROPERTIES | - |
dc.subject | COMPRESSIVE STRENGTH | - |
dc.subject | HIGH-VOLUME | - |
dc.subject | LADLE SLAG | - |
dc.subject | CONCRETE | - |
dc.subject | HYDRATION | - |
dc.subject | PRODUCTS | - |
dc.subject | MORTAR | - |
dc.title | Properties of cementless binders using desulfurization slag as an alkali activator | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000429662400008 | - |
dc.identifier.bibliographicCitation | JOURNAL OF CERAMIC PROCESSING RESEARCH, v.19, no.1, pp.37 - 42 | - |
dc.identifier.kciid | ART002336245 | - |
dc.identifier.scopusid | 2-s2.0-85045311528 | - |
dc.citation.endPage | 42 | - |
dc.citation.startPage | 37 | - |
dc.citation.title | JOURNAL OF CERAMIC PROCESSING RESEARCH | - |
dc.citation.volume | 19 | - |
dc.citation.number | 1 | - |
dc.contributor.affiliatedAuthor | Choi, Young Cheol | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Slag cement | - |
dc.subject.keywordAuthor | Cementless binder | - |
dc.subject.keywordAuthor | Desulfurization slag | - |
dc.subject.keywordAuthor | Ettringite | - |
dc.subject.keywordPlus | BLAST-FURNACE SLAG | - |
dc.subject.keywordPlus | FLY-ASH | - |
dc.subject.keywordPlus | ENGINEERING PROPERTIES | - |
dc.subject.keywordPlus | COMPRESSIVE STRENGTH | - |
dc.subject.keywordPlus | HIGH-VOLUME | - |
dc.subject.keywordPlus | LADLE SLAG | - |
dc.subject.keywordPlus | CONCRETE | - |
dc.subject.keywordPlus | HYDRATION | - |
dc.subject.keywordPlus | PRODUCTS | - |
dc.subject.keywordPlus | MORTAR | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Ceramics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
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