Experimental investigation on physical properties of black cotton soil with admixtures

Abstract

Black cotton soil bears undesirable engineering properties like variation in volume with change in water content. Due to the presence of clay content soils exabits tendency to swell when they come in contact with the moisture the size of the particles gets increased. The main objective of the present study is focused on to analyze various index properties of (Block Cotton) BC soils with admixtures as lime, Poly Vinyl Chloride (PVC) powder and crushed glass. Samples were tested in two stages. In first stage the physical properties of soil such as specific gravity, grain size analysis, and differential free swell index and Unconfined compression test (UCS) are conducted at 1, 2, 5, 7, and 12th days curing. In second stage on BC Soil with combination of PVC powder and crushed glass at 5%, 10% and 15% (crushed glass has to pass through 1mm sieve) by maintain 5% lime constant in all the samples tests were conducted. From experimental studies it is observed that proportions used for PVC and Crushed glass with optimum percentage of lime as 5 to 15% for finding OMC and MDD characteristics shows that the dry density has been increased with reduction in OMC.