Geotechnical Characterisation of High Plasticity Offshore Clay

This paper gives a review on some basic geotechnical properties and compressibility behaviour of offshore clay in Malaysia. The Atterberg Limits of the normally-consolidated and reconstituted offshore clay, such as liquid limit, plastic limit and plasticity limit, are discussed. Specific gravity and particle size distribution of the offshore clay are also presented, along with the comparison of geotechnical properties with available published data of other offshore clays. The consolidation and hydraulic conductivity characteristics of high plasticity offshore clay are derived from one-dimensional oedometer test. It is found that the geotechnical properties of high plasticity offshore clay are in agreement with those of other offshore clays, especially Norwegian Drammen clay.