STABILIZATION OF LATERITE SOIL WITH WASTE TIRE RUBBER

Solid waste management is one of the major environmental concerns worldwide. Waste tires are being produced and accumulated in large volumes. In order to eliminate the negative effect of these depositions and in terms of sustainable development there is great interest in the recycling of these non-hazardous solid wastes. The potential of using rubber from worn tires in many civil engineering works have been studied for more than 20 years. The Coastal regions in India the lateritic soil is available abundantly and several attempts were made to improve its strength. In this paper an attempt is made to use waste tyre rubber as stabilizing agent in rural road construction in combination with lateritic soil and also intended to find the properties such as density, shear properties and CBR, when lateritic soil is mixed with waste tyre rubber at different mix proportions (5%, 10%, 15% and 20%). Also to know the effect of size of rubber, two different sizes are considered and studied separately. The result have shown that the mix proportions of waste tyre rubber of size less than 2.36mm and in between 2.36 to 4.75mm gives good strength at 15% and 5% respectively.