Performance Grade

Performance Grade Bitumen is bitumen which is graded based on its performance at different temperatures. The LTPP has given the certain algorithm to calculate the temperature of the pavement based on the temperature of the air above. From this, the highest and the lowest temperatures of the pavement is calculated and the bitumen that performs well in that temperature range is selected. The higher the grade, the stiffer the bitumen. Most high performing roads in Australia are built and maintained using bitumen because it is durable and has exceptional waterproofing and adhesive properties. Bitumen used in road construction and maintenance are refined and blended to meet strict road engineering requirements and industry specifications.