Abstract
Reported distress to an industrial structure from phosphate/sulfate contamination of kaolinitic foundation soil at an industrial location in Southern India prompted this laboratory study. The study examines the short-term effect of sodium sulfate/phosphate contamination on the swell/compression characteristics of a commercial kaolinite. Experimental results showed that the unsaturated contaminated kaolinite specimens exhibited slightly higher swell potentials and lower compressions than the unsaturated uncontaminated kaolinite specimens. It is suggested that the larger double layer promoted by the increased exchangeable sodium ion concentration is responsible for the slightly higher swell potentials and lower compressions of the unsaturated contaminated kaolinite specimens.
Keywords:
compression, inorganic contaminants, swell, unsaturated soils
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Author Rao SM, Reddy PMR
Title Laboratory Studies on the Volume Change Characteristics of Kaolinite Contaminated with Sodium Phosphate/Sulfate
Symposium ,
Committee: on
