The need to design and construct roadways on highly plastic clays is common in central and eastern Texas, where expansive clays are prevalent. Roadways constructed on highly plastic clay subgrades may be damaged as the result of significant volume changes that occur when such soils undergo cycles of wetting and drying. These volume changes ultimately shorten the service life of the roadway.
A feasibility study was performed to determine the potential advantages of characterizing the swelling properties of highly plastic clay using a geotechnical centrifuge. Centrifuge testing of highly plastic clays will allow the Texas Department of Transportation to understand and respond to plastic clay swelling and thus decrease road maintenance costs.
- Large centrifuge permeameter
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Characterization of the Swelling Properties of Highly Plastic Clays Using Centrifuge Technology
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