Reclaimed asphalt usage: handling, processing, management and future trends in Lithuania

Abstract

Predictably asphalt pavements are 100% recyclable objects. Reclaimed asphalt pavements (RAP) could be recycled hot, warm and cold. RAP recycling should be focused not only on costly bitumen re-use and reduction of virgin bitumen usage in hot and warm mix asphalt but also in natural resources such as aggregates and filler savings. In Lithuania 100% of RAP is recycled, but in average only 10-30 % RAP is added producing hot mixed asphalt (HMA). The usage of RAP could be increased creating RAP processing and handling applications with accompanying modern in-plant production technologies, premium quality dosing and asphalt mixing plants (AMP) and expert knowledge in mix designs. This pa-per describes and summarizes various possible methods to process RAP recycling including its milling, handling, sampling, testing, preparation and storage before warm and hot recycling. As well recommendations for the specific climate countries as Lithuania are also summarized.