Experimental Investigation of Flexible Pavement by Using Crumb Rubber

Waste material Management is one of the powerful concepts in recent year. To overcome the Use of Crumb Rubber in the construction of flexible pavement is gaining importance. It is also worth mentioning that, the modifier raw-material has been sourced from disposed Crumb Rubber. This not only allows us to collect modifier raw material at low cost materials, but also provides a solution towards ecological menace posed by increased use of Crumb Rubber. Most of the Highways in India constructed with flexible pavement having wearing surfacing course with bituminous concrete. In the present investigation, an attempt has been made to use Crumb Rubber, blended using wet process. Marshal ability test of bituminous mix design was carried out for varying percentages of Crumb Rubber to determine the different mix design characteristics. Marshall ability 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). This has resulted in much improved characteristics when compared with straight run bitumen and improve the strength of pavement Modified Bitumen is one of the important construction materials for flexible pavements.