TEMPERATURE CHANGES AND THERMAL CRACKING IN CONCRETE PAVEMENTS AT EARLY AGES

THE EFFECTS OF PAVEMENT DESIGN, CONCRETE MIX PARAMETERS AND ENVIRONMENTAL CONDITIONS UPON TEMPERATURE CHANGES AND UPON THE RISK OF THERMAL CRACKING IN CONCRETE PAVEMENTS AT EARLY AGES WERE EXAMINED. OF THE PARAMETERS CONSIDERED, THE ABSORPTIVITY OF THE CONCRETE SURFACE TO SOLAR RADIATION HAD THE MOST SIGNIFICANT EFFECT UPON TEMPERATURE CHANGES AT EARLY AGES. THE RISK OF THERMAL CRACKING DURING THE FIRST FEW DAYS WAS FOUND TO BE CLOSELY RELATED TO THE TIME OF DAY AND THE SEASON IN WHICH THE CONCRETE WAS PLACED, THE LENGTH OF THE PAVEMENT SLAB, AND THE COEFFICIENT OF THERMAL EXPANSION OF THE AGGREGATE USED IN THE CONCRETE MIX. /TRRL/

  • Corporate Authors:

    Cement and Concrete Association

    52 Grosvenor Gardens
    London SW1W 0AQ,   England 
  • Authors:
    • Hunt, J G
  • Publication Date: 1972-4

Media Info

  • Features: Figures; References;
  • Pagination: 24 p.
  • Serial:
    • Issue Number: 424

Subject/Index Terms

Filing Info

  • Accession Number: 00214328
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: R&d Rpt
  • Files: TRIS, ATRI
  • Created Date: Jun 5 1974 12:00AM