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PROBLEM CLINIC

  • Retarder Controls Bond

    Is it practical to use a retarder to obtain selective bond between prestressing strands and the concrete in a beam?

     
  • Autogenous Healing

    What conditions seem to favor the so-called autogenous healing of fractures in concrete?

     
  • Concrete Temperature

    Can concrete temperatures be calculated in advance if the temperatures of the various materials are known?

     
  • Flexural Strength

    Is flexural strength testing a more reliable basis for accepting or rejecting concrete than compression testing?