SLOW-COOLING TESTS FOR FROST SUSCEPTIBILITY OF PENNSYLVANIA AGGREGATES
THE RESULTS OF A 2-YEAR STUDY OF FROST SUSCEPTIBILITY OF PENNSYLVANIA CONCRETE AGGREGATES BY SLOW COOLING ARE PRESENTED. THE INVESTIGATION STUDIED 60 AGGREGATE FRACTIONS FROM 20 SOURCES. PETROGRAPHIC FRACTIONATION AND EXAMINATION, A MODIFICATION OF POWERS' SLOW COOLING TEST, AND VARIOUS "QUICK" METHODS WERE COMPARED. GLACIAL GRAVELS AND GRAVELS OF SUSPECTED GLACIAL ORIGIN HAD A HIGH INCIDENCE OF DELETERIOUS FRACTIONS. GRAIN SIZE WAS FOUND TO HAVE A VERY IMPORTANT INFLUENCE ON FROST SUSCEPTIBILITY. BASED ON TEST COMPARISONS, THE USE OF THE SODIUM SULFATE SOUNDNESS TEST (ASTMC88) IS NOT RECOMMENDED. A NEW METHOD, BASED ON A REGIME PLOT OF BULK VACUUM-SATURATED SPECIFIC GRAVITY AND VACUUM-SATURATED ABSORPTION, IS PRESENTED. /AUTHOR/
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Supplemental Notes:
- Paper sponsored by Committee on Mineral Aggregates 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.
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Authors:
- Harman Jr, John W
- Cady, Philip D
- Bolling, Nanna B
- Publication Date: 1970
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 26-37
- Monograph Title: Concrete durability, cement paste, aggregates and sealing compounds
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Serial:
- Highway Research Record
- Issue Number: 328
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Concrete aggregates; Freeze thaw tests; Frost; Frost damage; Frost susceptibility; Glacial soils; Gravel; Limestone; Pastes; Sandstones
- Geographic Terms: Pennsylvania
- Subject Areas: Geotechnology; Highways; Materials;
Filing Info
- Accession Number: 00217850
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Feb 8 1971 12:00AM