CREEP OF PORTLAND CEMENT PASTE

COMPRESSION CREEP TESTS WERE PERFORMED AT APPROXIMATELY FORTY PER CENT OF ULTIMATE STRESS ON HOLLOW CYLINDERS OF HARDENED PORTLAND CEMENT PASTE OF WATER/CEMENT RATIOS OF 0.3 TO 0.4. THE SPECIMENS WERE ABOUT 6 BY 1 IN. AND 0.1 IN. THICK. THE TESTS WERE CONTINUED TO ABOUT 1000 HR AND WERE PERFORMED ON SATURATED AND OVEN-DRY SPECIMENS. STRAINS WERE MEASURED OPTICALLY. SATURATED SPECIMENS GAVE CREEP CURVES THAT HAD THREE FAIRLY DISTINCT REGIONS, INDICATING MORE THAN ONE MECHANISM TO BE IMPORTANT. THESE CURVES ALSO SHOW A DEFINITE PATTERN OR SCALLOP EFFECT FOR WHICH A MECHANISM IS POSTULATED. THE OVEN-DRY SPECIMENS EXHIBITED NO CREEP AT ALL WITHIN THE LIMITS OF THE MEASUREMENTS. THIS RESULT POINTS TO WATER MOVEMENT AS THE DOMINANT MECHANISM IN CREEP OF CONCRETE. /AUTHOR/

  • Supplemental Notes:
    • No Ce 227, PP 1146-1171
  • Corporate Authors:

    Purdue University

    School of Aeronautics and Astronautics
    West Lafayette, IN  United States  47907
  • Authors:
    • Mullen, W G
    • Dolch, W L
  • Publication Date: 1967-1

Subject/Index Terms

Filing Info

  • Accession Number: 00212428
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM