BigPatents India

- A process for the preparation modified bitumen useful for the preparation of rut resistant and water resistant bituminous mix for road construction, wherein the said method comprising heating IS 80/100 paving grade bitumen at a temperature in the range of 150 to 1800C, followed by addition of 2 to 8 percent of powered waste plastic by weight of bitumen, followed by stirring of the mixture using 1000 to 3000 rpm stirrer for 25 to 40 minutes, and addition of 0.15 to 0.25 percent of hydrogenated tallow (saturated) by weight of bitumen, and stirring the said mixture for 10 to 12 minutes for homogenising the blend to obtain waste plastic modified bitumen.