Strength development of mortars containing ground granulated blast-furnace slag: Effect of curing temperature and determination of apparent activation energies

Rosemary Barnett, Marios Soutsos, S.G. Millard, J.H. Bungey

    Research output: Contribution to journalArticlepeer-review

    200 Citations (Scopus)

    Abstract

    The strength development of mortars containing ground granulated blast-furnace slag (ggbs) and portland cement was investigated. Variables were the level of ggbs in the binder, water-binder ratio and curing temperature. All mortars gain strength more rapidly at higher temperatures and have a lower calculated ultimate strength. The early age strength is much more sensitive to temperature for higher levels of ground granulated blast-furnace slag. The calculated ultimate strength is affected to a similar degree for all ggbs levels and water-binder ratios, with only the curing temperature having a significant effect. Apparent activation energies were determined according to ASTM C1074 and were found to vary approximately linearly with ggbs level from 34 kJ/mol for portland cement mortars to around 60 kJ/mol for mortars containing 70% ggbs. The water-binder ratio appears to have little or no effect oil the apparent activation energy. (c) 2005 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    Pages (from-to)434-440
    Number of pages7
    JournalCement and Concrete Research
    Volume36
    Issue number3
    DOIs
    Publication statusPublished - Mar 2006

    ASJC Scopus subject areas

    • Industrial and Manufacturing Engineering
    • Ceramics and Composites

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