Experimental Study on the Subgrade Soil Stabilization using Lime Stone Powder

Abstract

Abstract: A good road network is a basic infrastructure required for rapid economic growth, and this road network fails mainly due to weak subgrade, less infiltration capacity, landslide etc.,. Use of lime stone powder material has become popular in the construction industry In this case study, an attempt is being made to stabilize the subgrade soil using Lime Stone powder . Expansive soils are the most challenging soils to work with because of their tendency to swell and expand when exposed to varying moisture levels. Many structures for civil engineering have been damaged as a result. The presence of expansive subgrade soil causes discomfort to the pavement and pavement deterioration. In order to solve the issue, thick layers of expanding soil must be removed and replaced with competent material, which is very expensive in terms of time and money-consuming due to long hauling distances. In this study, the expansive subgrade soil was stabilised using lime. The VIDISHA-BHOPAL NH-146 RANGAI GHAT Road is where the soil was collected. The free swell index test, Atterberg limit test, Proctor test, California Bearing Ratio Tests, and swelling potential were used to compare the attributes of treated and untreated soils. Lime was used to treat the subgrade soil that are superior to onather material results when mixed with soil at various percentages, such as 5%, 10%, 15%, and 20%. according to the soil's weight. Based on the results of the soaked CBR, MDD, and OMC, as well as the 20% Lime Stone, the CBR value increase.