Economic Construction of Bituminous Road by Utilization of Waste Tyre Rubber – CRMB

Rupesh Sahu; Rajesh Joshi

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25-May-25

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Economic Construction of Bituminous Road by Utilization of Waste Tyre Rubber – CRMB

Author(s):

Rupesh Sahu , Rajiv Gandhi Prodyogiki Mahavidyalaya Bhopal; Rajesh Joshi, Rajiv Gandhi Prodyogiki Mahavidyalaya Bhopal

Keywords:

AC, Base Course

Abstract:

The objective of this research is to find a good mix proportion for the rubberized bitumen. Flexible pavements with bituminous surfacing are widely used in India. The high traffic intensity in terms of commercial vehicles, over loading of trucks and significant variations in daily and seasonal temperature of the pavement have been responsible for earlier development of distress symptoms. Investigations in India and abroad have revealed that the properties of bitumen and bituminous mixes can be improved to meet the basic requirements. Use of Crumb Rubber i.e. the rubber obtained from the waste tires of vehicles, is used in the construction of flexible pavement. In the present study, an attempt has been made to use crumb rubber modified bitumen which is blended at specified temperatures. Marshall’s mix design was carried out by changing the modified bitumen content at constant optimum rubber content and subsequent tests have been performed to determine the different mix design characteristics and for conventional bitumen (VG-30) also. This has resulted in much improved characteristics when compared with straight run bitumen, due to improved strength of Modified Bitumen it is one of the upcoming important construction materials for flexible pavements. This study will have a positive impact on the environment as it will reduce the volume of rubber waste to be disposed of by burning and land filling. It will not only add value to rubber waste but will develop a technology, which is eco-friendly.