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

Tapio Vehmas, Anna Kronlöf

    Research output: Contribution to journalArticleScientificpeer-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
    Pages (from-to)269-272
    JournalNordic Concrete Research
    Volume43
    Publication statusPublished - 2011
    MoE publication typeA1 Journal article-refereed
    EventXXI Nordic Concrete Research Symposium - Hotel Rantasipi Aulanko, Hämeenlinna, Finland
    Duration: 30 May 20111 Jun 2011

      Fingerprint

    Keywords

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

    Cite this