COMPRESSION BEHAVIOR OF REMOLDED CEMENT-STABILIZED LOW SWELLING CLAY
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Abstract
The article presents the effect of cement on the index and compressive properties of remolded cement-stabilized low swelling clay. The clay sample was low plasticity clay mixed with cement at a cement content of 2 % to 6 % by weight of dry soil. The cement-stabilized low swelling clay was remolded at a curing time of 28 days. Its Index properties and 1-D consolidation were investigated. Cement content affected on index properties and compressibility properties of soil samples. The liquid limit and plastic limit of the soil sample tended to decrease with an increase in cement content. The void ratio and coefficient of consolidation of remolded cement-stabilized low swelling clay increased at particular vertical stress. For particular vertical stress, the compression index increased at optimum cement contents and has linear relationship with cement content. At the beginning, the coefficient of volume change and coefficient of permeability of the soil sample increased with an increase in cement content. The coefficient of permeability proposed by Nagaraj et al. [10] was not suitable for cement-stabilized low swelling clay. According to all consolidation test results, this paper modified the normalized equation with various swelling clay characteristics, which is useful for predicting the consolidation of other remolded clays for clay liner material in a waste landfill.
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The published articles are copyright of the Engineering Journal of Research and Development, The Engineering Institute of Thailand Under H.M. The King's Patronage (EIT).
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