The correlations between chemical and index properties for soft clay of Peninsular Malaysia

Mohd Yusof, Khairul Nizar and Lee , Yee Loon and Phuai , Phei Guan and Ahmad Tajuddin, Saiful Azhar The correlations between chemical and index properties for soft clay of Peninsular Malaysia. In: TISD 2006, Technology and Innovation for Sustainable Development Conference , 25-26 January 2006, Thailand.

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Abstract

Soft clays were a type of fine-grained soils which change volume when different from elastic deformation, consolidation and secondary compression. Soft clays defined as a disturbed cohesive soil whose water content is higher than its liquid limit; such materials display extremely low yield stresses and represent difficult construction conditions. The objectives of this study are to determine the chemical and index properties, and to correlate between chemical test and index properties. This paper describes the laboratory evaluation of soft clay, taken at RECESS Research Centre, Southern Johor and Kg. Mat Lagam, Terengganu, Peninsular Malaysia in undisturbed conditions at depth of 0.5 m to 3.0 m. For index properties, test results shows that the soft clay soils were categorized as silty clay with 53.95 % to 74.65 % of natural moisture content and specific gravity of 2.52 to 2.66. The distribution of soil is 84 % to 89 % of silt and 8 % to 16 % of clay. Atterberg limit test shows that soft clays content 47.2 % to 73 % of liquid limit, 19.83 % to 34.28 % of plastic limit and 18.82 % to 31.90 % of plasticity index. As for chemical properties, the chemical compositional determination of the silty soils of South-West Peninsular Malaysia such as pH values and % loss on ignition (LOI), and conductivity will be determined. The results show that the pH values are in the range of 6.23 to 7.52. The conductivity is in range of 565 μm/s to 1587 μm/s. The results of organic content given by X-Ray Diffraction (XRF) in LOI test give result in range of 2.4 % to 3.2 %. The engineering properties such as index and chemical properties are important in structure design and construction to ensure safety for a building. As for the soil compositions, it shows that the higher values of clay particles, it will generated the higher values of plasticity index, natural moisture contents, organic matters, and lower values of specific gravity.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Soft Clay; Index Properties; Chemical Properties
Subjects:T Technology > T Technology (General)
ID Code:2738
Deposited By:Normajihan Abd. Rahman
Deposited On:28 Aug 2012 16:38
Last Modified:28 Aug 2012 16:38

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