Measured Internal Temperatures in Concrete Exposed to Outdoor Cyclic Freezing

    Volume 26, Issue 1 (June 2004)

    ISSN: 0149-6123

    CODEN: CCAOAD

    Page Count: 7


    Rogers, CA
    Manager, Ontario Ministry of Transport, Downsview, Ontario

    Nokken, MR
    Ph.D. Candidate, University of Toronto, Toronto, Ontario

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

    (Received 23 April 2003; accepted 22 August 2003)

    Abstract

    In this paper, temperature data collected by thermocouples embedded into concrete over a period of 10 years are analyzed for a concrete slab and beam located outdoors near Kingston, Ontario. Temperatures measured in the concrete are compared with temperatures encountered in ASTM C 666 Resistance of Concrete to Rapid Freezing and Thawing and ASTM C 1293 Standard Test Method for Concrete Aggregates by Determination of Length Change of Concrete Due to Alkali-Silica Reaction. The average number of freezing and thawing cycles at the site was counted using different freezing and thawing temperature criteria as presented in the literature by various authors. Results are compared with data from a second site. The rates of freezing and thawing occurring at the outdoor exposure site were found to be significantly less than specified in the ASTM C 666 laboratory test. Average daily maximum temperatures in July were at approximately 33°C at depths of 50 mm in the concrete.


    Paper ID: CCA11928

    DOI: 10.1520/CCA11928

    ASTM International is a member of CrossRef.

    Author
    Title Measured Internal Temperatures in Concrete Exposed to Outdoor Cyclic Freezing
    Symposium , 0000-00-00
    Committee C01