EFFECTS OF COMBINING TWO OR MORE ADMIXTURES IN CONCRETE

TWO LABORATORY INVESTIGATIONS WERE CONDUCTED TO DETERMINE PREDICTABILITY OF PERFORMANCE OF CONCRETE MIXES (MADE WITHOUT ADMIXTURE AND WITH ONE OR MORE ADMIXTURES) WITH RESPECT TO COMPRESSIVE STRENGTH. TWO PROGRAMS, CONDUCTED 5 YEARS APART, USED DIFFERENT SOURCES OF MATERIALS-AIR- ENTRAINED CONCRETE AND NON-AIR-ENTRAINED CONCRETE RESPECTIVELY-AND TWO BASIC APPROACHES TO ASCERTAIN EQUIVALENCY OF PERFORMANCE LEVELS. IN THE FIRST PROGRAM, THE ADMIXTURE, OR ADMIXTURES, WERE ADDED TO THE CEMENT. IN THE SECOND PROGRAM, CEMENT CONTENTS WERE REDUCED TO COMPENSATE FOR EQUIVALENCY OF PERFORMANCE BY USE OF ONE OR MORE ADMIXTURES. LIBRARY RESEARCH WAS RELIED ON TO GIVE ADDITIONAL BACKGROUND INFORMATION. DATA SHOW THAT EXISTING CONCRETE TECHNOLOGY CAN SERVE AS A GUIDE IN PROPORTIONING CONCRETE MIXTURES CONTAINING ONE OR MORE ADMIXTURES AND THAT RESULTS CAN BE PREDICTED WITH REASONABLE ACCURACY. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 90-98
  • Monograph Title: Concrete
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00214097
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Apr 17 1972 12:00AM