THERMAL STABILIZATION OF SOILS, REPORT 1, EXPLORATORY LABORATORY STUDIES
AN EXPLORATORY LABORATORY INVESTIGATION WAS CONDUCTED IN WHICH ATTEMPTS WERE MADE TO STABILIZE FIVE SOILS OF WIDELY VARYING COMPOSITION BY THERMAL METHODS. THREE ADDITIVES (CRYOLITE, BORAX, AND GLASS) WERE TESTED AS FLUXING AGENTS. UNCONFINED COMPRESSIVE STRENGTHS OF FIRED SAMPLES WERE DETERMINED ON BOTH DRY AND SOAKED SPECIMENS. REACTIONS OCCURRING IN THE SOILS WITHOUT ADDITIVES AND IN THE SOIL- ADDITIVE COMBINATIONS WERE DETERMINED BY X-RAY DIFFRACTION ANALYSIS. TEST RESULTS INDICATE THAT THE TYPE OF ADDITIVE NEEDED TO ACHIEVE STABILIZATION AT A SIGNIFICANTLY LOWER TEMPERATURE THAN WOULD OTHERWISE BE NECESSARY IS DEPENDENT ON THE COMPOSITION OF THE SOIL. SOILS WITH HIGH CLAY CONTENTS TEND TO BE STABILIZED AT LOWER TEMPERATURES THAN THOSE CONTAINING APPRECIABLE AMOUNTS OF QUARTZ. ADDITIVES WHICH REACT WITH THE SILICATE MINERALS IN THE SOIL APPEAR TO LOWER THE STABILIZATION TEMPERATURE TO A GREATER EXTENT THAN THOSE WHICH SIMPLY MELT WHEN HEATED AND RESOLIDIFY WHEN COOLED. IT WAS CONCLUDED THAT SOIL STABILIZATION BY THERMAL METHODS CAN BE ACHIEVED ON ALMOST ANY SOIL PROVIDED IT IS HEATED TO A HIGH ENOUGH TEMPERATURE (APPROXIMATELY 1800 F) TO CAUSE GLASS FORMATION, HOWEVER, ECONOMICAL METHODS OF HANDLING, HEATING, AND PLACING THE MATERIAL NEED TO BE DEVELOPED. /AUTHOR/
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Authors:
- Day, D E
- Publication Date: 1965-11
Media Info
Subject/Index Terms
- TRT Terms: Additives; Clay; Diffraction; Fluxes; Glass; Heating (Structures); Laboratory studies; Minerals; Quartz; Soil stabilization; Soils; Temperature; Thermal power generation; X ray analysis; X rays
- Uncontrolled Terms: Stabilization; X-ray diffraction
- Old TRIS Terms: Borates; Cryolite; Thermal power
- Subject Areas: Geotechnology; Highways;
Filing Info
- Accession Number: 00231150
- Record Type: Publication
- Report/Paper Numbers: No 6-706
- Files: TRIS
- Created Date: Sep 1 1970 12:00AM