No abstract

An investigation into the behaviour of a contaminated clay soil and its treatment was showed that adding cement to contaminated soil increases the strength and the amount of increase in strength is dependent on the percent of cement, curing time and degree of contamination. Based on SEM analysis, it was found that the presence of glycerol prevents from interaction between soil and cement.

This paper presents a study on the mechanical properties of a contaminated clay soil and its treatment by cement. One group of unconfined compression (UC) tests was performed on samples of natural soil, and soil contaminated by Mono Ethylene Glycol (MEG) with 40% concentration at different degrees of contamination (3, 6 and 9%). Another group of UC tests was conducted on the samples that were prepared as mixtures of clean or MEG contaminated soil with different cement contents (3, 6 and 9%) at different curing times.The results show that the strength and stiffness of the soil contaminated with MEG is reduced increasingly by the degree of contamination. In addition, by adding cement to the contaminated soil, the strength of the soil is increased as a function of degree of contamination, percent of cement and curing time.