Journal of Transportation Engineering and Its Applications ISSN: 3107-4499 (Online)

Authors: Akshata Bhagwat, Manoj Murthy N^, Pavan G, R Prajwal, Thyagaraj K J

Abstract: Increased environmental awareness and stricter emissions regulations have led to the development of Warm Mix Asphalt (WMA) to reduce the high mixing temperatures of regular hot mix asphalt (HMA). Its benefits are reduction in energy consumption during production and reduced emissions during production and placement. The three most tested methods are WAM Foam, Aspha-min zeolite and Sasobit wax. All three methods reduce the viscosity of the binder at a certain temperature range, allowing the aggregate to be fully coated at lower temperatures than in HMA production. In the present study, an attempt is made to determine the optimum dosage of sasobit for Warm Mix Asphalt with lime and cement as fillers and for this optimum dosage Warm Mix Asphalt is designed using the Marshall Method of mix design. From the results, the optimum dosage of sasobit obtained is 2% for Lime and 3% for the cement treated WMA mix. For this optimum dosage the Warm Mix Asphalt mix is designed with a bitumen content of 5.64% and 5.76%, respectively. The performance in terms of Marshall Properties of Warm Mix Asphalt with sasobit additive is better when compared to the Warm Mix Asphalt without additive.