Development of Concrete Pavement with Crumb Rubber from Recycled Tire

Abstract

In general, pavement can be classified as rigid pavement (e.g., Concrete pavement) and flexible pavement (e.g., Asphaltic concrete pavement). The flexible pavement provides a more comfortable and softer driving impression than the rigid ones, however, it has some drawbacks of less durability and strength than regular rigid concrete. In fact, there are many approaches to enhancing the properties of concrete pavement to be more flexible and one among those is rubberized concrete. Rubberized concrete from recycled tires crumb rubber is one of the environmentally friendly materials that receive much more attention as a fine aggregate replacement in concrete. With its outstanding properties of rubber, e.g., flexibility, bendability and energy absorption, it could function to improve flexibility and more driving comfort for road users. This development of the rubberized concrete pavement was carried out by replacing crumb rubber of 10% 20% and 40% to fine aggregate (sand). The mechanical properties test found that the increasing amount of crumb rubber affected the mechanical properties of concrete, compressive strength tensile strength and flexural strength of the concrete are reduced. However, the replacement of crumb rubber 10% had a little effect on a mechanical properties compared the others. Furthermore, this rubberized mix design could also help to increase the usage, and the economic value, and reduce the environmental impact of concrete pavement technology.