Volume 19, Issue 2 (December 1997)

    Evaluation of Laboratory Drying Procedures Relevant to Field Conditions for Concrete Sorptivity Measurements

    CODEN: CCAOAD

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    Abstract

    The surface humidities of a limited set of field concretes during summer conditions in Ontario were measured prior to water absorption (sorptivity) testing. A series of alternative laboratory curing conditions was carried out on cores prior to laboratory sorptivity tests, to determine which would best mimic average field conditions (surface humidities greater than 40% and moisture contents greater than 1%). It was found that three days' oven drying at 50°C followed by sealed drying for four days at 50°C as suggested by Parrott worked well. In addition, the moisture content at test was calibrated to measured sorptivity results.


    Author Information:

    Bickley, JA
    Implementation manager, Concrete Canada, West Toronto, Ontario

    Hooton, RD
    Professor, University of Toronto, Toronto, Ontario

    DeSouza, SJ
    Engineer, Agra Earth and Environmental, Scarborough, Ontario


    Stock #: CCA10315J

    ISSN: 0149-6123

    DOI: 10.1520/CCA10315J

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    Author
    Title Evaluation of Laboratory Drying Procedures Relevant to Field Conditions for Concrete Sorptivity Measurements
    Symposium , 0000-00-00
    Committee C01