Property Interrelationship in Sensitive Clays

by William N. Houston,
James K. Mitchell,

Serial Information: Journal of the Soil Mechanics and Foundations Division, 1969, Vol. 95, Issue 4, Pg. 1037-1062

Document Type: Journal Paper

Abstract: The general properties of sensitive clays fit a pattern which is predictable using basic concepts concerning the influence of effective stress and void ratio on volume change tendencies during shear. The low strain-at-failure, low c/p ratio, relatively low strength, and high pore pressure parameter, Āf, of sensitive clays are due to their tendency to contract during shear. Sensitivity was found to increase in a consistent manner with increasing liquidity index and increasing effective stress. By using liquidity index as a normalized water content, it was possible to develop a general relationship between sensitivity, effective stress, and liquidity index that is applicable both to natural deposits of clay in the field and to laboratory-prepared soils.

Subject Headings: Effective stress | Clays | Soil stress | Shear strength | Soil strength | Soil pressure | Soil water |

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