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SOIL STABILIZATION BY USING E-WASTE

Shazan Khan


Soil stabilization is mainly a process of natural soil to meet specified engineering requirements of soil and thus making it more stable. The main properties that may require to be altered by stabilization are strength, volume stability, durability and permeability. In India, this type of soil covers an area of about 20% of the total land area. It is considered as unsuitable soil for construction purpose due to changing in volume property with variation in moisture content. When it comes in contact with water it shows immense swelling whereas it shrinks with the decrease in water content and develops cracks on drying. Now a day the utilization of waste products with soil has gained attention due to the shortage of suitable soil and increasing problems of industrial waste management. Expansive soil samples were collected from Uttar Pradesh, Lucknow district. This paper presents the results of an experimental program undertaken to investigate the effect of E-waste at different dosages on black cotton soil. Different dosages of E-waste i.e. 2%, 5% and 8% were added in the soil. The performance of E-waste stabilized soil was evaluated using physical and strength performance tests namely; Atterberg’s limit, specific gravity, compaction test, unconfined compressive test, California bearing ratio (CBR) and direct shear test. Theses test were conducted in order to evaluate the improvement in the strength characteristics of the soil. From the results, unconfined compressive strength of specimen increased with an average of 2.41 kN/m2for fixed dosage of E-waste. After performing direct shear test, there was an improvement in angle of friction (Ф). As the percentage of E-waste increased, friction angle increased. As bearing capacity is dependent on C and Ф, it was also observed that there is an increase in bearing capacity of the soil.