HARDENED CEMENT PASTES OF LOW POROSITY: EXPLORATORY STUDIES

A LABORATORY STUDY OF LOW-POROSITY HARDENED PORTLAND CEMENT PASTES IS REPORTED. THE GOAL WAS TO INCREASE PASTE STRENGTH AND DECREASE VOLUME CHANGES, WITH THE ULTIMATE AIM OF PRODUCING CONCRETE OF GREATER STRENGTH AND DIMENSIONAL STABILITY. OF 13 GRINDING AIDS TESTED WITH A TYPE I CLINKER IN AN INITIAL TEST SERIES, 4 WERE SELECTED FOR MORE INTENSIVE STUDY, BASED ON CONSISTENCY AND 28-DAY COMPRESSIVE STRENGTHS. IN THE SECOND SERIES, THE SAME TYPE I CLINKER AS WELL AS A TYPE II CLINKER WERE USED TO EXPLORE PASTE STRENGTH UP TO 180-DAYS. THE TESTS SHOWED THAT: (1) CLINKER CAN BE GROUND TO DESIRED FINENESS USING A VARIETY OF GRINDING AIDS, (2) PROPER KINDS AND AMOUNTS OF SURFACE- ACTIVE ADDITIVES CAN PROVIDE EXCELLENT WORKABILITY, AND (3) MUCH GREATER STRENGTH OF HARDENED PORTLAND CEMENT PASTE CAN BE ACHIEVED THAN IS NOW BEING PRODUCED. /AUTHOR/

  • Supplemental Notes:
    • Hpr, State 38-1, REPORT NO 68-9
  • Corporate Authors:

    Clarkson College of Technology

    ,    

    New York State Department of Transportation

    1220 Washington Avenue
    Albany, NY  United States  12232

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  United States  20590
  • Authors:
    • Brunauer, S
    • Mikhail, R S
    • Yodenfreund, M
  • Publication Date: 1968-6

Subject/Index Terms

Filing Info

  • Accession Number: 00212040
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS, STATEDOT
  • Created Date: Dec 6 1994 12:00AM