INVESTIGATION OF CRACKING IN CONCRETE BRIDGE DECKS AT EARLY AGES

This paper includes a thorough investigation to identify the probable causes of cracking in reinforced concrete bridge decks, particularly at early ages. The objectives of the study were addressed through a literature review process and a comprehensive nationwide survey. Experiments were performed to establish the magnitude of the modulus of elasticity of concrete at early ages as well as the curvature it can withstand without cracking. The parameters considered in the investigation were age of concrete, stage and sequence of pours, curing procedures, heat of hydration, strength gain, thermal changes, and construction type. Results indicate that in most cases, cracking of concrete may be attributed to the high evaporation rate and high magnitude of shrinkage.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Issa, M A
• Publication Date: 1999-5

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 116-124
• Serial:
  • Journal of Bridge Engineering
  • Volume: 4
  • Issue Number: 2
  • Publisher: American Society of Civil Engineers
  • ISSN: 1084-0702
  • Serial URL: http://ojps.aip.org/beo

Subject/Index Terms

• TRT Terms: Bridge decks; Concrete bridges; Cracking; Hydration; Pouring; Thermal stresses
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00762378
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 27 1999 12:00AM