Pollutants behaviour and temperature effect on chemical piles treated marine clay

Weak marine clay deposits are present in several regions of the world and t hey are imposing severe problems for structures founded in these deposits. The use of chemicals lime to improve the properties of these soft deposits is not new. In the present investigation, a test programme was carried out to study the influence of temperature on the engineering behaviour of chemi cal piles treated clays in the presence of sulphate and chloride contaminat ed marine environment. The formation of various cementation compounds due t o soil-lime reactions were identified by X-ray diffraction studies, and the attributed changes occurred in the engineering properties of the soil syst ems were also brought out. The test results indicated that the increase in temperature has improved the engineering properties of soil significantly. (C) 1999 Elsevier Science Ltd. All rights reserved.