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Title: CHEMICAL TREATMENTS FOR SURFACE HARDENING OF SOIL-CEMENT AND SOIL-LIME-FLYASH
Accession Number: 00231332
Record Type: Component
Abstract: CHEMICAL SURFACE TREATMENTS OF STABILIZED SOIL WERE INVESTIGATED TO INCREASE STRENGTH IN THE UPPER LAYER OF PAVEMENT. SURFACE TREATMENTS INVESTIGATED' IN THE LABORATORY WERE CALCIUM CHLORIDE, SODIUM HYDROXIDE, SODIUM CARBONATE, AND SODIUM SILICATE. A PUNCH-TYPE BEARING TEST, THE IOWA BEARING VALUE TEST, WAS UTILIZED TO GIVE A MEASURE OF SURFACE HARDNESS OF THE TREATED SOIL. THE STABILIZED SOIL CYLINDERS WERE COMPACTED TO STANDARD PROCTOR DENSITY BY MEANS OF A DROP-HAMMER MOLDING APPARATUS. CURING SOLUTIONS OF DIFFERENT CHEMICALS WERE SPRINKLED ON THE CUT SOIL SURFACES IN VARYING AMOUNTS. SOIL-LIME-FLYASH WAS BENEFITED MOST BY APPLICATION OF SODIUM SILICATE SOLUTIONS. CALCIUM CHLORIDE OR SODIUM CARBONATE SOLUTIONS WERE NOT PARTICULARLY EFFECTIVE SURFACE HARDENERS FOR SOIL-CEMENT. DAILY WETTING WAS IN ITSELF BENEFICIAL TO THE SILTY SOIL AND THIS ALONE INCREASED THE BEARING STRENGTH ABOUT 30% OVER THAT FROM ORDINARY MOIST CURING. DAILY SPRINKLING DECREASED THE BEARING STRENGTH OF THE STABILIZED SANDY SOIL.
Supplemental Notes: No 241, pp 49-66, 7 FIG, 9 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: Soil stabilization with asphalt, Portland cement, lime and chemicals Monograph Accession #: 01410633
Language: English
Authors: Handy, R LJordan, J LManfre, L EDavidson, D TPagination: 18p
Publication Date: 1960
Serial: Media Type: Digital/other
TRT Terms:
Base course (Pavements); Bearing capacity; Bearing tests; Calcium chloride; Chemicals; Concrete curing; Lime fly ash; Silts; Sodium carbonate; Sodium hydroxide; Sodium silicate; Soil cement; Soil compaction test; Soil stabilization; Soils; Stabilized materials; Surface hardening; Surface treating; Wetting
Uncontrolled Terms: Old TRIS Terms: Subject Areas: Geotechnology; Highways
Files: TRIS, TRB
Created Date: Aug 15 2004 2:41AM
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