Properties of cementless mortars activated by sodium silicate
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yang, Keun-Hyeok | - |
dc.contributor.author | Song, Jin-Kyu | - |
dc.contributor.author | Ashour, Ashraf F. | - |
dc.contributor.author | Lee, Eun-Taik | - |
dc.date.available | 2019-05-30T04:39:31Z | - |
dc.date.issued | 2008-09 | - |
dc.identifier.issn | 0950-0618 | - |
dc.identifier.issn | 1879-0526 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/23643 | - |
dc.description.abstract | The present paper reports the testing of 12 alkali-activated mortars and a control ordinary portland cement (OPC) mortar. The main aim is to develop cementless binder activated by sodium silicate powder. An alkali quality coefficient combining the amounts of main compositions of source materials and sodium oxide (Na2O) in sodium silicate is proposed to assess the properties of alkali activated mortars, based on the hydration mechanism of alkali-activated pastes. Fly ash (FA) and ground granulated blast-furnace slag (GGBS) were employed as source materials. The ratio of Na2O-to-source material by weight for different mortars ranged between 0.038 and 0.164; as a result, alkali quality coefficient was varied from 0.0025 to 0.0365. Flow loss of fresh mortar, and shrinkage strain, compressive strength and modulus of rupture of hardened mortars were measured. The compressive strength development of alkali activated mortar was also compared with the design equations for OPC concrete specified in ACI 209 and EC 2. Test results clearly showed that the flow loss and compressive strength development of alkali-activated mortar were significantly dependent on the proposed alkali quality coefficient. In particular, a higher rate of compressive strength development achieved at early age for GGBS-based alkali-activated mortar and at long-term age for FA-based,alkali-activated mortar. In addition, shrinkage strain and modulus of rupture of alkali-activated mortar were comparable to those of OPC mortar. (C) 2007 Elsevier Ltd. All rights reserved. | - |
dc.format.extent | 9 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Properties of cementless mortars activated by sodium silicate | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.conbuildmat.2007.07.003 | - |
dc.identifier.bibliographicCitation | CONSTRUCTION AND BUILDING MATERIALS, v.22, no.9, pp 1981 - 1989 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000257379100010 | - |
dc.identifier.scopusid | 2-s2.0-44349124114 | - |
dc.citation.endPage | 1989 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 1981 | - |
dc.citation.title | CONSTRUCTION AND BUILDING MATERIALS | - |
dc.citation.volume | 22 | - |
dc.type.docType | Article | - |
dc.publisher.location | 영국 | - |
dc.subject.keywordAuthor | alkali-activated mortar | - |
dc.subject.keywordAuthor | sodium silicate | - |
dc.subject.keywordAuthor | fly ash | - |
dc.subject.keywordAuthor | ground granulated blast furnace slag | - |
dc.subject.keywordAuthor | compressive strength | - |
dc.subject.keywordAuthor | modulus of rupture | - |
dc.subject.keywordAuthor | shrinkage strain | - |
dc.subject.keywordPlus | BLAST-FURNACE SLAG | - |
dc.subject.keywordPlus | C-S-H | - |
dc.subject.keywordPlus | PASTES | - |
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.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
84, Heukseok-ro, Dongjak-gu, Seoul, Republic of Korea (06974)02-820-6194
COPYRIGHT 2019 Chung-Ang University All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.