Contribution of asphalt mixture recycling for sustainable road infrastructure

Abstract

In today's global economy, rational use of resources occupies one of the first places among researches in the field of asphalt mixtures. The demand for aggregates for asphalt mixture is increasing, a trend that has a negative impact on the environment. A reasonable solution to reduce environmental impact is to use recycled asphalt mixture that results from milling layers of degraded asphalt road structure. This technology requires attention since the design phase to phase mix asphalt and mix asphalt production in the asphalt mixture plant. Recycling of asphalt mixture not only reduce the need of virgin materials but also reduces emissions, traffic and energy consumption associated with the transport and production of these materials. One the key element to an appropriate recycling project is proper evaluation and characterization of materials involved in this process.