Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 99, Issue -, Pages 279-287Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2015.09.039
Keywords
Alkali-aggregate reactivity; Cooling speed; Ferro-nickel slag; Fine aggregates
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Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT and Future Planning [NRF-2013R1A1A1011679]
- Nuclear Research & Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) Grant - Korea Government Ministry of Knowledge Economy [20141010101860]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20141010101860] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this study, the alkali-silica reactivity of cementitious materials using ferro-nickel slag (FNS) fine aggregates was experimentally evaluated for potential use in concrete. The results revealed that the reactivity of cement mortars using the aggregates varied with the cooling speed and particle size of the FNS. For example, the rapidly (i.e., water-) cooled FNS exhibited higher alkali-silica reactivity than its gradually (air-) cooled counterpart. The particle size of the water-cooled FNS also affected the reactivity of the specimens. Furthermore, the partial replacement of FNS with sea sand, and of cements with fly ash or ground granulated blast furnace slag was effective in reducing the alkali-silica reactivity of cementitious materials containing FNS as fine aggregates. (C) 2015 Elsevier Ltd. All rights reserved.
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