Effect of Marble Dust and Silica Fume on Engineering Properties of Clayey Soil
Keywords:
Clayey soil, Marble dust powder, Silica fume, standard proctor test.Abstract
This paper aims at studying the effects of silica fume and marble dust powder as admixtures in clayey soil to improve the engineering properties of soil. Silica fume and marble dust powder form a major percentage of waste materials originated by silicon industry and marble industry respectively. Based on Indian Standard guidelines Standard Proctor Test was conducted to determine the maximum dry density and optimum moisture content at varied percentages of waste admixtures (silica fume and marble dust powder) in the soil. An increase of OMC from 16.01% to 27% and decrease of MDD from 1.52g/cm3 to 1.47g/cm3 when the percentage of silica fume are used as 8, 16, & 24% respectively. When the percentage of marble dust powder are used as 12, 18 & 24% , there is decreased of OMC
from 15.86% to 14.92% and an increase of MDD from 1.65g/cc to 1.72 g/cc. There is increase of OMC from 16.32% to 22.38% and decrease of MDD from 1.69g/cc to 1.61 g/cc when the percentage of Silica fume varied from 5 to 15 % @ interval of 5% and marble dust is fixed at 18%
