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DC Field | Value | Language |
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dc.citation.startPage | 123647 | - |
dc.citation.title | CONSTRUCTION AND BUILDING MATERIALS | - |
dc.citation.volume | 296 | - |
dc.contributor.author | Yu, Juan | - |
dc.contributor.author | Song, Haemin | - |
dc.contributor.author | Jeon, Dongho | - |
dc.contributor.author | Sim, Sungwon | - |
dc.contributor.author | Kim, Dohoon | - |
dc.contributor.author | Lee, Hwan | - |
dc.contributor.author | Yoon, Seyoon | - |
dc.contributor.author | Yum, Woo Sung | - |
dc.contributor.author | Oh, Jae Eun | - |
dc.date.accessioned | 2023-12-21T15:37:15Z | - |
dc.date.available | 2023-12-21T15:37:15Z | - |
dc.date.created | 2021-07-14 | - |
dc.date.issued | 2021-08 | - |
dc.description.abstract | This study investigated the role of crystallinity of added nanometer-sized Al2O3 (nano-alumina) (i.e., poorly crystalline nano-alumina (gamma-alumina) vs. crystalline nano-alumina (alpha-alumina)) and the interaction of nano-aluminas with added gypsum in the CaO-activated ground granulated blast furnace slag (GGBFS) binder system. In the results, the use of gamma-alumina evidently increased the dissolution degree of silicon (Si) from GGBFS regardless of adding gypsum, which was the main ingredient of calcium silicate hydrate (C-S-H), and thus led to a noticeable increase of C-S-H. However, the sole use of alpha-alumina without added gypsum barely affected the C-S-H formation, although the added alpha-alumina alongside gypsum also had a similar effect on the dissolution of Si. In addition, due to the amorphous nature of gamma-alumina, the dissolution of gamma-alumina was faster than that of alpha-alumina. Thus, the use of gamma-alumina produced ettringite at the faster rate, as well achieving the greater and faster strength increase, although the added alpha-alumina was also slightly beneficial in accelerating the formation of ettringite. Thus, overall, the use of gamma-alumina was significantly more advantageous in improving strength by increasing the quantities of reaction products (C-S-H and/or ettringite) than that of alpha-alumina. (C) 2021 Elsevier Ltd. All rights reserved. | - |
dc.identifier.bibliographicCitation | CONSTRUCTION AND BUILDING MATERIALS, v.296, pp.123647 | - |
dc.identifier.doi | 10.1016/j.conbuildmat.2021.123647 | - |
dc.identifier.issn | 0950-0618 | - |
dc.identifier.scopusid | 2-s2.0-85107065305 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/53249 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0950061821014070?via%3Dihub | - |
dc.identifier.wosid | 000663625900006 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Influence of the degree of crystallinity of added nano-alumina on strength and reaction products of the CaO-activated GGBFS system | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Construction & Building Technology; Engineering, Civil; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Construction & Building Technology; Engineering; Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Nano-alumina | - |
dc.subject.keywordAuthor | CaO-activation | - |
dc.subject.keywordAuthor | GGBFS | - |
dc.subject.keywordAuthor | Alumina dissolution | - |
dc.subject.keywordAuthor | gamma-alumina | - |
dc.subject.keywordAuthor | alpha-alumina | - |
dc.subject.keywordPlus | GAMMA-ALUMINA | - |
dc.subject.keywordPlus | EARLY HYDRATION | - |
dc.subject.keywordPlus | RICE HUSK | - |
dc.subject.keywordPlus | CEMENT | - |
dc.subject.keywordPlus | ENHANCEMENT | - |
dc.subject.keywordPlus | DISSOLUTION | - |
dc.subject.keywordPlus | KINETICS | - |
dc.subject.keywordPlus | BINDERS | - |
dc.subject.keywordPlus | ASH | - |
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