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.

Language

  • English

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Filing Info

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