EVALUATION THE INTERFERENCES OF STABILIZED ORGANIC-CONTAMINATED CLAY SOIL USING HARDENING TEST

Abstract

Organic soil is a non-homogeneous soil produced as a result of biodegradation of organic matter such as plants, leaves and stems. Increasing the soil's organic content led to changes in the technical nature of the soil. Soil of organic is mostly considered to be the intricate soil at any construction project, due to its very low shear strength and high compressibility. It objects this study was to evaluate interference of organic contaminated clay soil by Stabilization/ Solidification technique (S/S). In this work, sewage sludge was applied as an organic material for different percentages (7%, 14% and 21%) of contaminated soil. The organic soil was treated using cement at (0%, 3%, 6%and 9%) by dry weight. The strength of hardness of the stabilized soils with the effect of organic materials were tested using hardness test at three curing times 7, 14 and 28 day; Based on this results from hardness characteristics strength of the stabilized organic soils, cement was the most effective stabilizer than styrene in terms of improving the strength of organic treated soils.