TESTING OF POZZOLANIC CEMENTS

THE CONTRIBUTION WHICH A POZZOLANA MAKES TO THE STRENGTH OF A POZZOLANIC CEMENT INCREASES WITH TEMPERATURE MORE RAPIDLY THAN THAT OF THE PORTLAND CEMENT. THE DIFFERENCE BETWEEN THE STRENGTH DEVELOPED IN MORTAR IN SEVEN DAYS AT 18C AND IN PARALLEL SPECIMENS CURED FOR PART OF THE SEVEN DAYS AT 50C WAS MEASURED AND CORRELATED WITH THE STRENGTH DEVELOPED IN POZZOLANIC CEMENT CONCRETES AT 180 AND 365 DAYS AT 18C. THIS CORRELATION WAS SIGNIFICANTLY HIGHER THAN THAT GIVEN BY A 28-DAY TEST ON MORTARS CURED AT 18C. THIS DIFFERENCE TEST ALSO PICKED OUT POZZOLANAS WHICH MADE ONLY A POOR CONTRIBUTION TO RESISTANCE TO SULPHATE ATTACK. A WIDER RANGE OF POZZOLANAS NEEDS TO BE EXAMINED. /AUTHOR/

  • Corporate Authors:

    Cement and Concrete Association

    52 Grosvenor Gardens
    London SW1W 0AQ,   England 
  • Authors:
    • Lea, F M
  • Publication Date: 1973-1

Media Info

  • Pagination: p. 21-5
  • Serial:
    • Volume: 4
    • Issue Number: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00214228
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 19 1973 12:00AM