MEASURED INTERNAL TEMPERATURES IN CONCRETE EXPOSED TO OUTDOOR CYCLIC FREEZING
In this paper, temperature data collected by thermocouples embedded into concrete over a period of 10 years is analyzed for a concrete slab and beam located outdoors near Kingston, Ontario. Temperatures measured in the concrete are compared to those 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 freeze/thaw cycles at the site was counted using different freezing/thawing temperature criteria as presented in the literature by various authors. Results are compared with data from a 2nd site. Rates of freezing and thawing occurring at the outdoor exposure site were found to be significantly less than specified in the ASTM C 666 lab test. Average daily maximum temperatures in July were at approximately 33 deg C at depths of 50 mm in the concrete.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/3528769
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Corporate Authors:
100 Barr Harbor Drive
West Conshohocken, PA United States 19428-2959 -
Authors:
- Nokken, M R
- Hooton, R D
- Rogers, C A
- Publication Date: 2004-6
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 26-32
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Serial:
- Cement, Concrete and Aggregates
- Volume: 26
- Issue Number: 1
- Publisher: American Society for Testing and Materials (ASTM)
- ISSN: 0149-6123
- Serial URL: http://journalsip.astm.org/JOURNALS/CEMENT/cca_home.html
Subject/Index Terms
- TRT Terms: Beams; Cold weather; Concrete structures; Concrete tests; Freeze thaw durability; Freeze thaw tests; Slabs; Structural members; Thermocouples
- Geographic Terms: Ontario (Province)
- Subject Areas: Highways; Materials; I32: Concrete;
Filing Info
- Accession Number: 00975267
- Record Type: Publication
- Files: TRIS
- Created Date: Jun 17 2004 12:00AM