NOTES ON SECONDARY CONSOLIDATION
THE PATTERN OF SECONDARY CONSOLIDATION OVER SEVERAL YEARS, HAS BEEN DETERMINED IN THE LABORATORY FOR SEVERAL PEATS AND CLAYS. EXTRAPOLATION OF SHORT-TIME TESTS IS UNCERTAIN. THE EFFECTS OF VARIOUS LOADS, PRECOMPRESSION AND SAMPLE THICKNESS HAVE BEEN MEASURED. TIME IS INDEPENDENT OF THICKNESS BUT HIGHER LOADS TEND TO ACCELERATE THE PROCESS OF SECONDARY CONSOLIDATION. TESTS ON DESICCATED, AIR DRY AND WET MATERIALS INDICATE THAT THE SEAT OF SECONDARY CONSOLIDATION IS IN THE HYGROSCOPIC MOISTURE. SORPTION OF HYGROSCOPIC MOISTURE CAUSES CONSIDERABLE SWELL. TESTS ON WOOD, ROSIN AND COTTON INDICATE THAT BONDING AND CREEP OF PARTICLES REDUCE SECONDARY EFFECTS, WHEREAS SOFTENING DUE TO WETTING CAUSES LARGE CONSOLIDATIONS. AN INTERRELATION OF PRIMARY AND SECONDARY CONSOLIDATION IS POSTULATED. /AUTHOR/
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Supplemental Notes:
- Vol 40, pp 663-675, 20 FIG, 2 TAB, 12 REF. 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:
- Barber, E S
- Publication Date: 1961
Media Info
- Media Type: Digital/other
- Monograph Title: Proceedings of the Fortieth Annual Meeting of the Highway Research Board, Washington, D.C., January 9-13, 1961.
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Serial:
- Highway Research Board Proceedings
- Volume: 40
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Consolidation; Hygroscopic coefficient; Moisture content; Secondary consolidation; Soil consolidation test; Soils; Water
- Uncontrolled Terms: Soil consolidation
- Old TRIS Terms: Hygroscopic water
- Subject Areas: Geotechnology; Highways;
Filing Info
- Accession Number: 00233159
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Jun 5 1972 12:00AM