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Title: DURABILITY OF SOIL-LIME-FLY ASH MIXES COMPACTED ABOVE STANDARD PROCTOR DENSITY
Accession Number: 00232473
Record Type: Component
Abstract: LIME-FLYASH STABILIZED KANSAS DUNE SAND, IOWA SILT (LOESS) AND TEXAS COASTAL PLAIN CLAY SHOW A DEFINITE INCREASE IN DURABILITY WHEN COMPACTED TO DENSITIES ABOVE STANDARD PROCTOR. IN FACT, SILT AND CLAY MIXES GAINED STRENGTH MORE RAPIDLY THROUGH ARTIFICIAL WEATHERING THAN AFTER SUSTAINED MOIST CURING. TWO-IN. BY 2-IN. CYLINDRICAL SPECIMENS PREPARED WITH 25 PERCENT LIME-FLYASH AND OPTIMUM RATIOS OF LIME TO FLYASH (1:9 FOR SAND AND SILT, AND 2:8 FOR THE CLAY) WERE CURED FOR 14 DAYS AT NEARLY 100 PERCENT RELATIVE HUMIDITY AND 70 F PRIOR TO BEING SUBJECTED TO CYCLES OF FREEZING AND THAWING OR WETTING AND DRYING. MOISTURE ABSORPTION, SWELLING AND UNCONFINED COMPRESSIVE STRENGTH OF THE SPECIMENS, AFTER VARIOUS CYCLES OF FREEZE-THAW AND WET- DRY WERE USED AS A MEANS OF ANALYZING THE DURABILITY OF THE STABILIZED SOILS. THE INCREASES IN STRENGTH DURING WET-DRY AND FREEZE-THAW TESTS OVER NORMAL MOIST CURING, ARE ATTRIBUTED TO IMPROVED INTIMACY OF CONTACT BETWEEN LIME AND FLYASH GRAINS FOLLOWING DISSOLUTION AND REPRECIPITATION OF THE LIME. /AUTHOR/
Supplemental Notes: No 193, pp 1-11, 7 FIG, 4 TAB, 5 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.
Monograph Title: Monograph Accession #: 01410588
Language: English
Authors: Hoover, J MHandy, R LDavidson, D TPagination: 11p
Publication Date: 1958
Serial: Media Type: Digital/other
TRT Terms: Uncontrolled Terms: Subject Areas: Geotechnology; Highways
Files: TRIS, TRB
Created Date: Aug 15 2004 2:43AM
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