To overcome this problem, it is recommended to use alternative materials for highway construction, by which the pollution and disposal problems may be reduced. Also, cost of extracting good quality of natural material is increasing. The availability of natural materials is declining. Most of the construction materials used for roads are soil, stone aggregate, sand, bitumen, cement etc. These materials lead to environmental pollution in the atmosphere nearby locality due non biodegradable property. In the present scenario disposal of rubber wastes produced from different Industries is a great problem. Keywords Crumb rubber, ductility of bitumen. Experimental investigations were undertaken to check the pavement worthiness of these mixes The design and performance of Bituminous Concrete mainly depends upon the quality and percentage of binder used. Marshall Values, namely Marshall Stability Value, Marshall Flow Value, Voids present in air, Voids in Aggregates and Voids in Bitumen, determined from Marshall Stability Test, serve as the benchmark values to assess the quality of Bituminous Concrete. On the basis of the performance of the modified bitumen, the range of optimum percentages of crumb rubber waste were selected for further investigations related to Bituminous Concrete Mixes such as Semi Dense Bituminous Concrete (SDBC). crumb rubber waste for mass scale utilization such as in highway construction in an environmental safe manner.Īs a first part of this study, an attempt was made to assess the stabilization of the bitumen containing crumb rubber waste in shredded form by performing basic tests such as Penetration Test, Ductility Test, Softening Point Test, Viscosity Test and Flash & Fire Point Tests. SR Technical University Avadi, Chennai, Tamil NADUĪbstract- The aim of the study was to utilize the waste materials i.e. Study of Behaviour of Bitumen Modified with Crumb Rubber
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