Performance Analysis of pond ash as partial replacement to Black Cotton soil for pavement subgrade construction

Girish Dinkar Patil; Sushma Shekhar Kulkarni

Volume : IV, Issue : VI, June - 2015

Performance Analysis of pond ash as partial replacement to Black Cotton soil for pavement subgrade construction

Girish Dinkar Patil, Sushma Shekhar Kulkarni

Abstract :

Expansive nature of black cotton soil generates lot many problems in pavement construction. It drastically affects the performance and life of the pavement. Thus for good performance and long life of road it is important to improve the properties of black cotton soil. This study deals with improving the properties of black cotton soil through addition of Pond ash as industrial waste. Laboratory tests were conducted on various proportions of mixes of black cotton soil and industrial wastes 0% to 25% at the interval of 5%. The soaked CBR value of untreated soil is 0.61%. The soaked CBR value of mix soil: Pond Ash in the proportion of 80:20 is 1.53% which is increased by 92% in comparison with untreated soil. Where Stabilized pavement is designed by using industrial waste in the sub–grade the total thickness of pavement is decreased by 150 mm, as comparison with conventional flexible pavement.