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Title: EFFECT OF CHEMICALS ON SOIL-CEMENT STABILIZATION AND DISCUSSION
Accession Number: 00230509
Record Type: Component
Abstract: THE EFFECTS OF CERTAIN CHEMICALS ON SOIL-CEMENT MIXTURES WERE QUANTITATIVELY MEASURED BY THREE TESTS' UNCONFINED COMPRESSIVE STRENGTH, TRIAXIAL COMPRESSIVE STRENGTH, AND IOWA FREEZE-THAW AND WET-DRY DURABILITY TESTS. THE CHEMICALS WERE COMPOUNDS OF SODIUM, CALCIUM AND MAGNESIUM, AND ALSO COMMERCIAL LIME. THE EIGHT SOILS USED VARIED WIDELY IN PROPERTIES DUE TO DIFFERENCES IN SAMPLING LOCATION, DEPTH, TEXTURE, AND TYPE OF CLAY MINERAL. THE UNCONFINED COMPRESSIVE STRENGTHS OF SPECIMENS COMPACTED TO NEAR STANDARD PROCTOR DENSITY AT OPTIMUM MOISTURE CONTENT INDICATED THAT ORGANIC TOP SOILS BENEFITED FROM THE IN- CORPORATION OF SULFATES WHEN THE SOILS WERE ACIDIC AND LOW IN CLAY CONTENT. THE TRIAXIAL COMPRESSIVE STRENGTH TEST ON THE NATURAL SOIL, SELECTED SOIL-CEMENT, AND SOIL-CEMENT CHEMICAL MIXES INDICATED THAT FOR THE SANDY SOIL-CEMENT THE PROMISING CHEMICALS CONTAINING MAGNESIUM OR SODIUM IONS INCREASED BOTH THE COHESION AND ANGLE OF INTERNAL FRICTION. THE UNCONFINED COMPRESSIVE STRENGTH DATA WERE VERIFIED BY THE IOWA FREEZE-THAW AND WET DRY TEST STRENGTHS. CONCLUSIONS WERE' /1/ THE IOWA FREEZE-THAW TEST IS AS DEPENDABLE AS THE STANDARD ASTM-AASHO FREEZE TEST. /2/ THE ESTABLISHMENT OF A FUNCTIONAL RELATIONSHIP BETWEEN THE 14-DAY UNCONFINED COMPRESSIVE STRENGTH OF THE MIXTURE OF SOIL-CEMENT CHEMICAL AND THE STRENGTH OF THE SAME MIXTURE AFTER 7 DAYS HUMID CURING AND A FULL 10-CYCLE SUBJECTION TO THE IOWA FREEZE- THAW TEST FURTHER VALIDATES THE CONTENTION THAT STABILIZING AGENT REQUIREMENTS OF SOILS MAY BE EVENTUALLY DETERMINED BY MEANS OF SIMPLE STRENGTH TESTS.
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
Monograph Title: Monograph Accession #: 01410006
Authors: Laguros, Joakim GDavidson, Donald TPagination: pp 172-203
Publication Date: 1963
Serial: Media Type: Print
Features: Appendices
(1)
; Figures
(15)
; References
(31)
; Tables
(15)
TRT Terms:
Calcium compounds; Calcium oxide; Chemicals; Clay minerals; Coefficient of internal friction; Cohesion; Compression tests; Depth; Durability; Freeze thaw tests; Location; Magnesium compounds; Mixtures; Sampling; Sodium compounds; Soil cement; Soil stabilization; Soils; Specifications; Stabilizers; Strength of materials; Testing; Texture; Triaxial shear tests; Wetting and drying tests
Uncontrolled Terms: Geographic Terms: Old TRIS Terms: Subject Areas: Geotechnology; Highways
Files: TRIS, TRB
Created Date: Aug 15 2004 2:40AM
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