Impact of curing on behaviour of basaltic expansive clay

Abstract

Lime stabilisation is a commonly used method for improving the properties of expansive clay subgrades around the world. This paper investigates the effect of curing on the behaviour of lime-stabilised basaltic expansive subgrade. The effect of the presence of low levels of organic material in the surface clay on change in pH of the mixture is also investigated. This leads to a better understanding of the impact of curing duration on the process of lime stabilisation when dealing with these clays. In this study, Braybrook and Whittlesea (a western and a northern suburb of Melbourne, Australia) expansive clays were stabilised using different percentages of hydrated lime. Physical properties of..