LEARNING TO LIVE WITH A REACTIVE CARBONATE ROCK
FACED WITH BUILDING A FOUR-LANE CONCRETE HIGHWAY FOR 30 MILES WEST OF KINGSTON, ONT., WHERE THE LOCAL DOLOMITIC- LIMESTONE AGGREGATES MIGHT SHOW EXPANSIVE REACTIVITY IN CONCRETE IN THE PRESENCE OF ALKALI, AN INVESTIGATION WAS MADE TO DETERMINE THE SAFEST AND MOST ECONOMICAL WAY OF DOING THIS. SELECTION OF AGGREGATES PROVED POSSIBLE ON THE BASIS THAT THEY SHOWED LITTLE EXPANSION IN CONCRETE PRISMS MADE WITH HIGH ALKALI CEMENT AND CURED UNDER STANDARD CONDITIONS. CONFIRMATORY DATA WERE OBTAINED IN THE LABORATORY ON THE FACTORS THAT INFLUENCE THE DEGREE OF EXPANSION AND THE EFFECT OF ALKALIES FROM A SOURCE OTHER THAN THE CEMENT. ALSO DESCRIBED ARE PRECAUTIONS TAKEN TO INSURE THAT ONLY NON- REACTIVE AGGREGATES WERE USED AND THAT THE OTHER FACTORS FACTORS FAVORING EXPANSION WERE MINIMIZED. /AUTHOR/
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Supplemental Notes:
- 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:
- Smith, P
- Publication Date: 1964
Media Info
- Media Type: Print
- Features: Figures; References;
- Pagination: pp 126-133
- Monograph Title: Symposium on Alkali-Carbonate Rock Reactions
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Serial:
- Highway Research Record
- Issue Number: 45
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Carbonate rocks; Concrete pavements; Dolomite; Economic analysis; Expansive cement; Four lane highways; Laboratory tests; Limestone aggregates; Prisms; Reactive aggregates
- Geographic Terms: Kingston (Canada)
- Subject Areas: Economics; Geotechnology; Highways;
Filing Info
- Accession Number: 00217427
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Jan 25 1994 12:00AM