ANISOTROPY AND FAILURE CRITERIA FOR CONCRETE

THE MIGRATION OF WATER WITHIN FRESH CONCRETE TO PRODUCE THE PHENOMENON KNOWN AS "WATER GAIN" APPEARS TO HAVE RECEIVED FAR TOO LITTLE ATTENTION, PARTICULARLY AS REGARDS FAILURE THEORIES WHICH ASSUME THAT CONCRETE EXHIBITS ISOTROPIC BEHAVIOR. IT IS SHOWN THAT CONCRETE IS ANISOTROPIC WHEN SUBJECTED TO EITHER TENSILE OR COMPRESSIVE STRESSES. RELIABLE COMPARISONS OF TENSION AND COMPRESSION TEST RESULTS MUST THEREFORE RELATE THE DIRECTION OF TESTING THE SPECIMENS TO THE VERTICAL DIRECTION AT CASTING. THE DESIGN OF CAST IN-SITU COLUMNS, FOR EXAMPLE, BASED ON NORMAL CUBE TEST RESULTS CAN BE PARTICULARLY UNSAFE. THE EFFECTS OF ANISOTROPIC BEHAVIOR UPON FAILURE ENVELOPES FOR BIAXIAL STATES OF STRESS ARE ALSO CONSIDERED /AUTHOR/

  • Supplemental Notes:
    • Vol 3, No 18, PP 371-374
  • Authors:
    • HUGHES, B P
    • ASH, J E
  • Publication Date: 1970-11

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Filing Info

  • Accession Number: 00213864
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 10 1971 12:00AM