THE IMPORTANCE OF MOISTURE ABSORPTION CHARACTERISTICS OF LIGHTWEIGHT COARSE AGGREGATE
LIGHTWEIGHT COARSE AGGREGATES FROM FIVE SOURCES, COMMERCIALLY AVAILABLE IN TEXAS, WERE SELECTED FOR INVESTIGATION. ALL AGGREGATES SELECTED WERE STRUCTURAL LIGHTWEIGHT AGGREGATES PRODUCED FROM SHALE BY THE ROTARY KILN PROCESS. THE ABSORPTION CHARACTERISTICS OF THE AGGREGATES, INCLUDING TOTAL ABSORPTION AND ABSORPTION RATE, WERE STUDIED. CONCRETES INCORPORATING THE FIVE AGGREGATES WERE SUBJECTED TO REPEATED FREEZING AND THAWING (ASTM C290) AND THE RESULTS WERE COMPARED TO THE AGGREGATE ABSORPTION CHARACTERISTICS. THE RESULTS DEMONSTRATE THAT THE CONCRETES WHICH INCORPORATED AGGREGATES THAT HAVE HIGH ABSORPTION CAPACITIES AND/OR ABSORB WATER AT A RAPID RATE ARE SUSCEPTIBLE TO FREEZE-THAW DAMAGE. /AUTHOR/
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Supplemental Notes:
- Paper sponsored by Committee on Mineral Aggregates and presented at the 47th 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.
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Authors:
- Buth, Eugene
- Ledbetter, W B
- Publication Date: 1968
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 35-40
- Monograph Title: Concrete Admixtures Aggregates and Durability
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Serial:
- Highway Research Record
- Issue Number: 226
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Absorption; Cement kilns; Coarse aggregates; Concrete aggregates; Freeze thaw durability; Freeze thaw tests; Lightweight aggregates; Moisture content; Ovens; Shale
- Old TRIS Terms: Freezing thawing effects
- Subject Areas: Geotechnology; Highways;
Filing Info
- Accession Number: 00217753
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Sep 12 1994 12:00AM