Improvement of Soil Stability and Strength by Integrating Industrial Waste (Fly Ash and Steel Slag)

In this thesis we explores the potential of improving the soil stability and the strength by the incorporating the industrial waste as the stabilizing agents. The materials like fly ash, steel stag, from the industrial sources, were used to enhance the strength and the properties of the soil. In this study, we have to evaluates the effect of these stabilizers on the various soil which includes the unconfined compressive strength (UCS) moisture content, California Bearing Ratio (CBR), permeability, and the shrinkage limit .We have to do the experimental results demonstrated that the use of industrial It is not only to improve the strength and the stability of soil but it also offers us the environmental and the economic benefits by the reducing the need and stabilizing the traditional stabilizing agents to minimize the waste disposal challenges. The rapid growth of industries residue a large quantity of waste material in form of slag and ashes. These materials can be used for soil stabilization due to containing some useful elements like Silica oxide (SiO2), Calcium oxide (CaO2) Iron Oxide ( FeO2) and Steel etc. needed for the soil’s gripping. Waste material like Steel slag and Fly ash Class C (produced from burning anthracite or bituminous coal, having high amount of calcium fly ashes with carbon contents more than 10% ) can add with Clayey Soil in proportion ratio to improve soil behavior and its strength. The mix proportion of industrial waste material ie Steel Slag is taken in the ratio of 13% , 26% & 39 % and Fly Ash are taken in ratio of 7% , 14 % 21% respectively. The examinations conducted to assess geotechnical properties include tests for water content, specific gravity, sieve analysis, liquid limit, and plastic limit. These tests are shown the results of Steel slag and Fly ash that it improves the geotechnical properties of the soil samples with the waste material Steel slag and fly ash of Class C is useful for clayey soil. The optimum values of mixed material for higher California Bearing Ratio (CBR) and Unconfined Compressive Strength (UCS) value are achieved in mix ratio 66 % Clayey Soil, 21 % Fly Ash and 13 % Steel Slag