Stabilization of Soil by Use of Waste Tyre Rubber

In India, the scrap or waste tyres are being generated and accumulated in huge volumes causing an increasing hazard to the environment. In order to eradicate the negative effect of these confessions and in terms of sustainable development, there is great interest in the recycling of these non-hazardous solid wastes. So we can stabilize the soil by using waste tyre rubber, which is available as a waste in more numbers. The objective of this study is to study the improvement of bearing capacities of the clay soil using waste tyre rubber. To examine the optimum moisture content present in the soil by using waste tyre rubber and also to study the improvement of settlement of clay soil by using waste tyre rubber.

Experimental study on earth pressure reduction of waste tyre bales used as a backfill for rigid retaining structures

Waste tyre-derived products, including whole tyres, tyre bales, shreds, chips and crumb rubber, have been widely used in geotechnical applications. In particular, tyre bales have considerable potential for use in the construction of a lightweight embankment or road foundation over soft ground, slope stabilisation or landslide repairs and the backfilling for retaining structures. Proper design of tyre bale structures requires a reliable strength analysis to ensure an adequate factor of safety. The analysis should utilise the properties of the tyre bales and the baled structures, which must be properly determined. A laboratory test programme was developed to determine the key strength parameters of a backfill made of tyre bales supplemented with a lightweight aggregate. Full-scale direct shear tests were conducted to define the interface shear strength between the tyre bales and the filling material. Earth pressure reduction analysis based on the experimental results was performed as well to assess the effectiveness of waste tyre bales used as a backfill for rigid retaining structures.