SMALL CONCRETE SPECIMENS UNDER REPEATED COMPRESSIVE LOADS BY PULSE VELOCITY TECHNIQUE

THE USE IS DESCRIBED OF AN ULTRASONIC PULSE VELOCITY TECHNIQUE FOR THE STUDY OF MICROCRACKS FORMED IN HIGH- STRENGTH CONCRETE IN A STATE OF UNIAXIAL COMPRESSION UNDER STATIC AND REPEATED LOADS. TESTS CONDUCTED ON PRISMATIC CONCRETE SPECIMENS HAVE REVEALED SIGNIFICANT DIFFERENCES IN THE MAGNITUDE OF PULSE VELOCITY DECREASE UNDER STATIC- AND REPEATED-LOAD SYSTEMS. THE PROGRESSIVE NATURE OF THE FAILURE IN CONCRETE UNDER REPEATED LOADS IS STUDIED BY THE PARAMETER PERCENTAGE DECREASE IN PULSE VELOCITY IN RELATION TO THE PERCENTAGE OF FATIGUE LIFE. AN EMPIRICAL RELATION BETWEEN THE PARAMETERS WAS ESTABLISHED FROM THE TEST DATA, WHICH COULD BE USED TO PREDICT THE REMAINING FATIGUE LIFE OF A PARTIALLY FATIGUED SPECIMEN. /AUTHOR/

  • Supplemental Notes:
    • Vol 5, No 2, PP 262-272, 9 FIG, 14 REF
  • Corporate Authors:

    American Society for Testing and Materials

    100 Barr Harbor Drive, P.O. Box C700
    West Conshohocken, PA  United States  19428-2957
  • Authors:
    • Raju, N K
  • Publication Date: 1970-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00213749
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 26 1970 12:00AM