Dynamic Properties of Chemically Stabilized Sulfate Rich Clay
This article has been corrected.
VIEW CORRECTIONPublication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 130, Issue 2
Abstract
A series of resonant column tests was conducted on chemically stabilized specimens of sulfate-rich expansive clay from southeast Arlington, Tex. Specimens were tested for different stabilizer types, stabilizer dosages, compaction moisture contents, and confining pressures. Three chemical stabilization methods were used: sulfate resistant type V cement, low calcium class F fly ash, and lime mixed with polypropylene fibers. Results in the small-shear strain amplitude range were analyzed to assess the influence of compaction moisture content and confining pressure on the linear shear modulus and material damping of stabilized soil. Tests were also conducted at small- to mid-shear strain amplitude levels (0.0001–0.01%) to assess the threshold strain limit for each treatment method, and to study the effects of torsional shearing on the rate of degradation of normalized modulus of treated soil. A 10%-by-weight dosage of sulfate resistant type V cement was found to give the highest modulus and lowest damping when compacted at 95% of maximum dry unit weight on the wet side of Proctor optimum.
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Copyright © 2004 American Society of Civil Engineers.
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Received: Feb 26, 2002
Accepted: Jun 6, 2003
Published online: Jan 16, 2004
Published in print: Feb 2004
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