Effect of Suction Hysteresis on Resilient Modulus of Fine-Grained Soil.

Author(s)
Khoury, C. Khoury, N. & Miller, G.A.
Year
Abstract

The effect of hysteresis on the resilient modulus (MR) of subgrade soils was investigated via a series of laboratory suction-controlled MR tests conducted on unsaturated, fine, sandy silt under cyclic suction. In other words, tests were performed at various suctions along the soil-water characteristic curve (SWCC) primary drainage, primary wetting, and secondary drying paths. A relationship between resilient modulus and suction, called theMR characteristic curve (MRCC), is obtained. Results indicate that the resilient modulus is dependent on the suction-stress history of the soil. For a given suction, specimens that underwent cyclic suction (i.e. drying followed by wetting) showed higher resilient modulus than those that underwent primary drying.

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Publication

Library number
C 48174 (In: C 47949 DVD) /42 / ITRD E854502
Source

In: Compendium of papers DVD 89th Annual Meeting of the Transportation Research Board TRB, Washington, D.C., January 10-14, 2010, 16 p.

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