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Cited 7 time in webofscience Cited 10 time in scopus
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Use of Recycled Aggregate as Alkali Activator to Enhance Strength Development in High-Volume Blast-Furnace Slag Concrete

Authors
Han, DongyeopKim, Jun-HoHan, MincheolYi, Seong-Tae
Issue Date
Mar-2020
Publisher
KOREAN SOCIETY OF CIVIL ENGINEERS-KSCE
Keywords
High-volume blast-furnace slag; Recycled aggregate; Alkali activation; Compressive strength; Concrete
Citation
KSCE JOURNAL OF CIVIL ENGINEERING, v.24, no.3, pp 902 - 912
Pages
11
Indexed
SCIE
SCOPUS
KCI
Journal Title
KSCE JOURNAL OF CIVIL ENGINEERING
Volume
24
Number
3
Start Page
902
End Page
912
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/6908
DOI
10.1007/s12205-020-1329-y
ISSN
1226-7988
1976-3808
Abstract
The aim of the research is to achieve the strength development performance of high-volume slag concrete or zero-cement concrete with 0.45 of W/B by incorporating of recycled aggregates as a cost-effective alkali activator. Based on the blast-furnace slag (BFS) based cement, like an alkali activated slag (AAS), recycled aggregates were replaced by natural aggregates and were used as an alkali activator for BFS. For compressive strength improvement in concrete, different replacement ratios of ordinary Portland cement ranged from zero to 50%, recycled fine aggregates (RFA) and recycled coarse aggregates (RCA) ranged from zero to 100% were varied. The test results indicated that recycled aggregates could be used as an alkali activator for BFS, and they were also able to help achieve about 90% of compressive strength of the concrete with natural aggregate depending on its optimum proportion with BFS.
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공과대학 (건축공학부)
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