PROPERTIES OF NORMAL AND LIGHTWEIGHT CONCRETE UNDER MULTIAXIAL COMPRESSIVE LOADINGS

THE PROBLEM ADDRESSED IN THE RESEARCH REPORTED HERE WAS DETERMINATION OF THE DIFFERENCES IN THE BEHAVIOR PATTERNS AND FAILURE CRITERIA OF PLAIN CONCRETE MADE WITH INSULATING, STRUCTURAL LIGHTWEIGHT, AND NORMAL WEIGHT AGGREGATES UNDER MOISTURE CONDITIONS FROM DRY TO MOIST, TOWARD THE END OF PROVIDING GENERALIZED FAILURE CRITERIA FOR USE UNDER COMPLEX COMPRESSIVE LOADING CONDITIONS. A SECOND OBJECTIVE WAS TO EMPLOY STATE-OF-THE-ART CONCEPTS AND TEST PROCEDURES. ACCORDINGLY, THE REPORT COMMENCES WITH A REVIEW OF THE TESTING LITERATURE FROM 1903 TO THE PRESENT. TEST METHODS ARE SIMILARLY REVIEWED FOR THE PURPOSE OF SELECTING AN APPROACH SUITABLE FOR THE ENDS BEING PURSUED. TEST RESULTS ARE REPORTED AND COMPARED WITH THOSE OF PREVIOUS RESEARCH. THE TESTS SHOWED THAT THE STRENGTH GAIN DEVELOPED UNDER THE LOADING CONDITIONS VARIED DIRECTLY WITH THE UNIT WEIGHT OF THE PARTICULAR CONCRETE. CONCRETES MADE WITH INSULATING AGGREGATES APPEARED TO BE WEAK. CONCRETES MADE ENTIRELY WITH INSULATING AGGREGATE SHOWED NO GAIN IN STRENGTH WITH INCREASING NORMAL STRESS, WHILE CONCRETES MADE WITH BOTH A STRUCTURAL LIGHTWEIGHT AGGREGATE AND INSULATING AGGREGATE SHOWED SOME STRENGTH GAIN WITH INCREASE OF THE NORMAL STRESS. MOISTURE PLAYED MAJOR ROLE IN UNIAXIAL TESTS AND A SECONDARY IN MULTIAXIAL. EQUATIONS ARE DEVELOPED TO REPRESENT (1) THE FAILURE STRENGTHS OF ALL TESTS IN THE FORM OF TENSILE DISTORTION STRESSES AND (2) FAILURE CRITERIA FOR A GENERAL STATE OF STRESS.

  • Supplemental Notes:
    • TECH REP 74
  • Corporate Authors:

    New Mexico State University, Las Cruces

    Department of Civil Engineering, P.O. Box 30001
    Las Cruces, NM  USA  88003-8001
  • Authors:
    • Zimmerman, R M
  • Publication Date: 1971-10

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 101 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00214143
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 3 1973 12:00AM