DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jun, Yubin | ko |
dc.contributor.author | Han, Seong Ho | ko |
dc.contributor.author | Kim, Jae Hong | ko |
dc.date.accessioned | 2023-02-13T06:00:38Z | - |
dc.date.available | 2023-02-13T06:00:38Z | - |
dc.date.created | 2023-02-13 | - |
dc.date.created | 2023-02-13 | - |
dc.date.created | 2023-02-13 | - |
dc.date.issued | 2023-01 | - |
dc.identifier.citation | INTERNATIONAL JOURNAL OF CONCRETE STRUCTURES AND MATERIALS, v.17, no.2, pp.345 - 355 | - |
dc.identifier.issn | 1976-0485 | - |
dc.identifier.uri | http://hdl.handle.net/10203/305149 | - |
dc.description.abstract | This study investigated the efficiency of CO2 curing in blast-furnace slag pastes activated with three concentrations of KOH solution (3, 4, and 5 M). The CO2 curing was applied into the alkali-activated slag paste for 3 days. The CO2-cured pastes were subjected to subsequent curing in a water bath or exposed to seawater. The mechanical properties and characteristics of the reaction products were compared. Full strength can be obtained within 3 days of the early CO2 curing. The strength remained almost constant regardless of the activator concentration. The CO2-cured samples produced more CaCO3 after exposure to the seawater. The carbonates filled the micropores of the samples, and no strength reduction was observed. The hydrates Ca(OH)(2) and C-S-H(I) are carbonated, forming calcite and amorphous CaCO3 during the subsequent curing and exposure to seawater as well as the CO2 curing. A less dense matrix with a lower activator concentration facilitated the diffusion of CO2 and promoted early carbonation in the paste. The polymerization of C-S-H(I) was relatively slow with low activity, and within the period of CO2 curing, more carbonates were produced in the sample prepared at a low activator concentration. | - |
dc.language | English | - |
dc.publisher | SPRINGER | - |
dc.title | Performance of CO2-Cured Alkali-Activated Slag Pastes During Curing and Exposure | - |
dc.title.alternative | Performance of CO2-Cured Alkali-Activated Slag Pastes During Curing and Exposure | - |
dc.type | Article | - |
dc.identifier.wosid | 000913662000001 | - |
dc.identifier.scopusid | 2-s2.0-85146573976 | - |
dc.type.rims | ART | - |
dc.citation.volume | 17 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | 345 | - |
dc.citation.endingpage | 355 | - |
dc.citation.publicationname | INTERNATIONAL JOURNAL OF CONCRETE STRUCTURES AND MATERIALS | - |
dc.identifier.doi | 10.1186/s40069-022-00563-3 | - |
dc.identifier.kciid | ART002941297 | - |
dc.contributor.localauthor | Kim, Jae Hong | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | CO2 curing | - |
dc.subject.keywordAuthor | Amorphous CaCO3 | - |
dc.subject.keywordAuthor | Calcite | - |
dc.subject.keywordAuthor | CCUS | - |
dc.subject.keywordAuthor | Alkali-activated slag | - |
dc.subject.keywordPlus | MICROSTRUCTURAL DEVELOPMENT | - |
dc.subject.keywordPlus | CEMENT PASTE | - |
dc.subject.keywordPlus | FLY-ASH | - |
dc.subject.keywordPlus | CARBONATION | - |
dc.subject.keywordPlus | STRENGTH | - |
dc.subject.keywordPlus | KINETICS | - |
dc.subject.keywordPlus | MORTARS | - |
dc.subject.keywordPlus | BINDER | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.