IMPROVING INITIAL STRENGTH OF A CONCRETE MADE WITH TYPE 20M CEMENT

A special interest for contractors is improving the initial strength of concrete to enhance their productivity by reducing the delay before deforming. The study presented here illustrates that it is possible to employ a low heat of hydration Type 20M cement, which is typically employed in Quebec in mass concrete construction, to develop high initial strength that can be used to enhance the production of massive structural elements. Type 20M cement has a slightly lower heat of hydration than Type II American Society for Testing and Materials (ASTM) cement. The improvement of initial strength of concrete created with Type 20M cement is made possible by reducing the water-cement ratio using a melamine-based superplasticizer that has less influence on retarding the setting time than that of a naphthalene-based superplasticizer and by replacing part of the cement with an adequate amount of silica fume and limestone filler.

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  • Corporate Authors:

    American Society for Testing and Materials

    100 Barr Harbor Drive, P.O. Box C700
    West Conshohocken, PA  United States  19428-2957
  • Authors:
    • Kessal, M
    • Nkinamubanzi, P-C
    • Tagnit-Hamou, A
    • Aitcin, P-C
  • Publication Date: 1996-6

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00726971
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 26 1996 12:00AM