METHODS OF CONTROLLING GROUT FOR PRESTRESSED, POST- TENSIONED STRUCTURES

A STUDY WAS MADE TO DETERMINE THE EFFECTS OF VARIOUS ADMIXTURES, CEMENT BRANDS, AND AIR ENTRAPMENT/ENTRAINMENT ON THE QUALITY OF CEMENT GROUT. THE RELATIONSHIP BETWEEN THESE PARAMETERS AND COMPRESSIVE STRENGTH WAS ALSO INVESTIGATED. A NUMBER OF LABORATORY GROUT MIXING EXPERIMENTS WERE PERFORMED. RESULTS ARE TABULATED FOR COMPARISON, AND WHERE APPLICABLE, STATISTICAL ANALYSES PERFORMED. IT WAS FOUND THAT ADMIXTURES, IN THE QUANTITY USED FOR THIS STUDY, IN ALL CASES, DECREASED COMPRESSIVE STRENGTHS AND INCREASED THE BLEEDING OF GROUT. HIGHER MIXING SPEEDS TENDED TO RESULT IN SLIGHTLY MORE AIR ENTRAPMENT. /FHWA/

  • Corporate Authors:

    California Division of Highways

    Materials and Research Department
    Sacramento, CA  USA  95819

    California Department of Public Works

    1120 N Street
    Sacramento, CA  USA  95814
  • Authors:
    • Weaver, R E
    • Mccormick, J L
    • Watkins, R L
    • Freeman, R J
  • Publication Date: 1971-11

Media Info

  • Pagination: 23 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00212126
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Files: TRIS, USDOT
  • Created Date: Apr 8 1973 12:00AM