Utilization of fly ash and jute geotextile for soil stabilization

Civil engineering structures may be constructed on weak or soft soil. Soil having poor shear strength and high swelling & shrinkage can be strengthened by ground improvement techniques such as soil stabilization by reinforcement materials. It enhances mechanical behavior of soil and the reliability of construction. Changes in various soil properties such as Liquid Limit, Plastic Limit, Compaction, and California Bearing Ratios (CBR) were studied when the soil was blended with fly ash, and the effect of jute geo textile in stiffness characteristics was tested at different depths in CBR mould. The Atterberg’s limits of clay soil are 64% and 26.11%, and its values are decreased to 40% and 10% when fly ash content increases from o% to 35% in soil. Maximum dry density in modified compaction is observed to be 17.76kN/m3 for 25% fly ash blended soil and decreases with further addition, and OMC decreases from 23% to 20% when fly ash content increases from 0% to 25%. Maximum CBR value is observed to be at 25% fly ash content, and values decrease with an increase of fly ash. Load settlement behavior of CBR is increased for 25% fly ash blended soil reinforced with jute geo textile placed at different depths such as 0.1H to 0.6H in CBR mould, and a maximum value of 6.634 % is observed at 0.2H location in the mould. The properties of black cotton soil can be modified by adding fly ash and Jute Geo textile to utilize it as an engineering material for various purposes such as foundation soil pavement sub grade.