Stabilization Of Soft Soils Using Industrial Wastes



Soil is a peculiar material. Some materials like fly ash, rice husk ash, pond ash, cement, lime, etc. can be used to stabilize the soil. Soil stabilization is the alteration of soils to enhance their physical properties. Stabilization can increase the shear strength of the soil and control the shrink-swell properties of a soil, thus improving the load bearing capacity of a sub-grade to support pavements and foundations. An investigation concerning stabilization of available fine sand has been performed to improve their strengths with the addition of variable amounts (5%, 10%, 15%, 20%) of cement and lime. Various tests like standard proctor compaction test, direct shear test and California Bearing Ratio (CBR) test were performed on the fine sand. Addition of lime and cement resulted in appreciable increase in the CBR value, Maximum Dry Density (MDD) and Optimum Moisture Content (OMC), whereas in case of fly ash and rice husk ash, the optimum moisture content was increased and the maximum dry density is decreased as their density was less than the density of the soil and

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