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/
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Supplemental Notes:
- Sponsored by Committee on Chemical Additions and Admixtures for Concrete. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
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Authors:
- Lovewell, C E
- Hyland, Edward J
- Publication Date: 1971
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 90-98
- Monograph Title: Concrete
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Serial:
- Highway Research Record
- Issue Number: 370
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Admixtures; Air entrained concrete; Compressive strength; Laboratory tests; Performance; Pozzolan; Reviews
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 00214097
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Apr 17 1972 12:00AM