Effects of Stone Dust on Lime Stabilized Granular Soil.

Abstract

This Paper investigated Materials by adding percentage of Stone Dust on the 10% Lime treated soil and observe the improvement of Geotechnical properties. This method expected to improve the Performance of Flexible Pavement by treating the Sub-base Materials locally available in the Construction corridor. The objective of this paper was to evaluate the effects of granular materials by varying the percentage of Stone Dust 5%, 10%, 15%, 20%, 25% and 30% on the 10% Lime treated soil. California Bearing Ratio (CBR) and Unconfined Compressive Strength (UCS) was analysed as the measure of Performance of Flexible Pavement. Investigation showed that as the increase in Lime CBR values increased to 22.4% at 10% Lime compared to 4.7% at 0% but after addition of Stone Dust CBR observed to be improved from 22.4% to 47.1% at 30% Stone Dust which is equivalent to 47.6%. Either as the increase in Lime content the UCS has shown an improvement by 24% where at 2% UCS value was 0.8Mpa and at 10% UCS value was 3.3Mpa after seven days curing and submerged into water for four hours as per standards, as the addition of Stone Dust on the 10% Lime treated Soil UCS values has been increases slightly from 3.3Mpa to 4.76Mpa at 30% Stone Dust + 10% Lime. As the study jointly analysed the associated factors for the Performance of Flexible Pavements which were CBR and UCS, therefore it was established the optimum 10% Lime + 30% Stone Dust content of and established.