A study of early-age ordinary portland cement hydration according to autocatalytic reaction model

Tapio Vehmas, Anna Kronlöf

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    Early-age hydration of Ordinary Portland Cement was studied with semi-adiabatic calorimeter in the presence of limestone and calcium-silicate-hydrate (C-S-H) coated limestone. The calorimetric data was analyzed as an autocatalytic reaction. Early age hydration followed the principles of autocatalytic reaction and the rate controlling phase was the initially nucleated C-S-H. Addition of limestone did not increase it, whereas C-S-H coated limestone had a massive impact to the hydration reaction.
    Original languageEnglish
    Title of host publicationXXI Nordic Concrete Research Symposia
    Place of PublicationOslo
    PublisherNorsk Betongforening
    Pages269-272
    Publication statusPublished - 2011
    MoE publication typeA4 Article in a conference publication
    EventXXI Nordic Concrete Research Symposium - Hotel Rantasipi Aulanko, Hämeenlinna, Finland
    Duration: 30 May 20111 Jun 2011

    Publication series

    SeriesNordic Concrete Research
    Volume43
    ISSN0800-6377

    Conference

    ConferenceXXI Nordic Concrete Research Symposium
    Country/TerritoryFinland
    CityHämeenlinna
    Period30/05/111/06/11

    Keywords

    • early-age hydration
    • seeding
    • autocatalytic reaction
    • calorimeter

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