Soils and Foundations

Soils and Foundations

Volume 37, Issue 2, June 1997, Pages 105-115
Soils and Foundations

Effect of Chlorides and Sulphates on Lime Treated Marine Clays

https://doi.org/10.3208/sandf.37.2_105Get rights and content

ABSTRACT

Soft marine clay deposits are present in many coastal regions of the world and they are usually enriched with chlorides and occasionally with sulphates. The use of lime to improve the properties of soft clay deposits is not new. A test program was carried out to study the changes in the particle level of soil systems attributed to lime in a marine environment. The formation of various new reaction products due to soil-lime reactions were identified by X-Ray Diffraction (XRD) and the same was investigated using Scanning Electron Microscope (SEM). The test results indicate that the presence of chlorides encourage the efficiency of lime stabilization, but the presence of monovalent sulphates affect the improvement of the soil system due to the formation of the swelling compound, etttringite. It is suggested, that the lime injection technique can be conveniently used to improve the behavior of soft marine clay deposits.

Key words

cementation compounds
engineering properties
lime injection
marine clays
soil-lime reactions (IGC: F2/K6)

Cited by (0)

Written discussions on this paper should be submitted before January 1, 1998 to the Japanese Geotechnical Society, Sugayama Bldg. 4F, Kanda Awaji-cho 2-23, Chiyoda-ku, Tokyo 101, Japan. Upon request the closing date may be extended one month.

View Abstract