Comparison on Marshall Stability Properties of Plain and Crumb Rubber Modified Bitumen

The abundance and increase of waste tire disposal is a serious problem that leads to environmental pollution. Crumb rubber obtained from shredding of those scrap tires has been proven to enhance the properties of plain bitumen. It can be used as a cheap and environmentally friendly modification process to minimize the damage of pavement due to increase in traffic density, axle loading and low maintenance services which has deteriorated and subjected road structures to failure more rapidly. The use of crumb rubber leads to excellent pavement life and low maintenance. The present study aims in investigating effect of crumb rubber bitumen as a modifier in various proportions. Common laboratory test will be performed on the modified bitumen in various proportion of Bitumen and thus analyzed. Marshall Method is adopted for testing. Finally, a comparative study is made among the plain Bitumen and modified Bitumen by varying the proportions of crumb rubber.