Development of alkali-activated binder using hwangtoh without calcination
DC Field | Value | Language |
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dc.contributor.author | Kim, Baek-Joong | - |
dc.contributor.author | Yi, Chongku | - |
dc.contributor.author | Kang, Kyung-In | - |
dc.date.accessioned | 2021-09-05T08:47:13Z | - |
dc.date.available | 2021-09-05T08:47:13Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2014-05-15 | - |
dc.identifier.issn | 0950-0618 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/98508 | - |
dc.description.abstract | In terms of flow and compressive strength, we examined natural hwangtoh, a readily available eco-friendly material mineralogically similar to kaolin, as a possible alkali-activated binding material. The phase and molecular structures of hwangtoh before and after alkali activation were analyzed by X-ray diffraction (XRD) and solid-state nuclear magnetic resonance (NMR). The sample prepared by mixing hwangtoh with 10 M sodium hydroxide and sodium silicate solutions at 0.45 and 0.10 by weight of hwangtoh, respectively, gave the highest compressive strength of 25.4 MPa and a flow value of 50%. The results of the XRD analysis were consistent with the results of Si-29 solid-state NMR analysis, which showed that local environments of the Si-29 nucleus in hwangtoh transformed from Q(3)(0Al) to Q(3)(1Al) and Q(4) in the amorphous phase during the alkali-activation process. The newly formed reaction products filled the pores and densified the matrix, improving the compressive strength of the alkali-activated | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.subject | FLY-ASH | - |
dc.subject | METAKAOLIN | - |
dc.subject | HYDRATION | - |
dc.subject | SI-29 | - |
dc.subject | NMR | - |
dc.subject | GEOPOLYMERISATION | - |
dc.subject | CONCRETE | - |
dc.subject | STRENGTH | - |
dc.subject | MORTAR | - |
dc.subject | KAOLIN | - |
dc.title | Development of alkali-activated binder using hwangtoh without calcination | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yi, Chongku | - |
dc.contributor.affiliatedAuthor | Kang, Kyung-In | - |
dc.identifier.doi | 10.1016/j.conbuildmat.2014.02.003 | - |
dc.identifier.scopusid | 2-s2.0-84896758973 | - |
dc.identifier.wosid | 000335103300024 | - |
dc.identifier.bibliographicCitation | CONSTRUCTION AND BUILDING MATERIALS, v.58, pp.206 - 213 | - |
dc.relation.isPartOf | CONSTRUCTION AND BUILDING MATERIALS | - |
dc.citation.title | CONSTRUCTION AND BUILDING MATERIALS | - |
dc.citation.volume | 58 | - |
dc.citation.startPage | 206 | - |
dc.citation.endPage | 213 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Construction & Building Technology | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Construction & Building Technology | - |
dc.relation.journalWebOfScienceCategory | Engineering, Civil | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | FLY-ASH | - |
dc.subject.keywordPlus | METAKAOLIN | - |
dc.subject.keywordPlus | HYDRATION | - |
dc.subject.keywordPlus | SI-29 | - |
dc.subject.keywordPlus | NMR | - |
dc.subject.keywordPlus | GEOPOLYMERISATION | - |
dc.subject.keywordPlus | CONCRETE | - |
dc.subject.keywordPlus | STRENGTH | - |
dc.subject.keywordPlus | MORTAR | - |
dc.subject.keywordPlus | KAOLIN | - |
dc.subject.keywordAuthor | Hwangtoh | - |
dc.subject.keywordAuthor | Alkali activation | - |
dc.subject.keywordAuthor | Physical properties | - |
dc.subject.keywordAuthor | XRD | - |
dc.subject.keywordAuthor | Si-29 solid-state NMR | - |
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