Harnessing of industrial waste for improvement of soils is economical and efficient. It helps in enhancing the soil properties and overcoming the disposal problem. Therefore, it is essential to understand the properties of these wastes in order to understand their performance level. In this study, waste marble dust was added to stabilize the soil which was collected from Rajpura Punjab. The various index properties liquid limit, plastic limit was studied by adding Marble dust 10%,15%,20% and 25% by weight of soil. Similarly, California Bearing Ratio (CBR), Unconfined Compressive Strength (UCS) was calculated at maximum dry density obtained from compaction test. It was observed that based on tests that 20% of waste marble dust was optimum for strengthening of the parent soil. Resilient Modulus was calculated afterwards for the subgrade using models specified by Heukelom and Klomp, Thompson and Robnett, Transport and Road Research Laboratory, Erdem Coleri. Based on the results obtained, pavement thickness was determined for designing flexible pavement section as per IRC 37-2012 using IITPAVE. Design was done considering the horizontal tensile strain and vertical compressive strain at the bottom of bituminous base and at top of subgrade, responsible for fatigue and rutting of pavements.
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