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Title: YOUNG'S MODULUS, CREEP, AND SHRINKAGE OF GAP-GRADED CONCRETE VERSUS CONTINOUSLY GRADED CONCRETE
Accession Number: 00213846
Record Type: Component
Abstract: THIS PAPER PRESENTS EXPERIMENTAL RESULTS VERIFYING THE AUTHORS' PREVIOUS HYPOTHESIS THAT GAP-GRADED AIR-ENTRAINED CONCRETE HAS HIGHER YOUNG'S MODULUS OF ELASTICITY IN COMPRESSION, LESS SHRINKAGE, AND LESS CREEP THAN ITS CONTINUOUSLY GRADED COUNTERPART OF THE SAME MAXIMUM SIZE OF COARSE AGGREGATE AND SAME AMOUNT OF ENTRAINED AIR. THESE ATTRIBUTES ARE THE DIRECT RESULTS OF LESS SPECIFIC SURFACE IN GAP GRADING, COMPARED TO THAT IN CONTINUOUS GRADING, REQUIRING LESS WATER--CEMENT RATIO, LESS CEMENT, LESS WATER, LESS MATRIX, AND HIGHER AGGREGATE--MATRIX RATIO. THE INAPPLICABILITY OF EXISTING EQUATIONS FOR GAP-GRADED CONCRETE IS SHOWN, AND NEW MATHEMATICAL RELATIONSHIPS ARE DERIVED FOR MODULUS OF ELASTICITY AND CREEP FOR BOTH GAP- GRADED AND CONTINUOUSLY GRADED CONCRETES. THE EQUATIONS ARE FURTHER COMPARED WITH OTHER EXISTING RESULTS FOR GAP-GRADED CONCRETE. /AUTHOR/
Supplemental Notes: Paper sponsored by Committee on Mechanical Properties of Concrete and presented at the 49th Annual Meeting. 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
Monograph Title: Monograph Accession #: 01410263
Authors: Li, Shu-T'ienRamakrishnan, VPagination: pp 77-88
Publication Date: 1970
Serial: Media Type: Print
Features: Figures
(8)
; References
(5)
; Tables
(5)
TRT Terms: Old TRIS Terms: Subject Areas: Highways; Materials
Files: TRIS, TRB
Created Date: Apr 25 1971 12:00AM
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