Experiment study on the rubber and fly ash of modified asphalt

This paper mainly used rubber and fly ash to modify matrix asphalt, expecting to get the reasonable rubber dosage and fly ash. The production technology of rubber asphalt, including cutting temperature, cutting time, production process, was determined by the laboratory experiment at different craft conditions according to rubber asphalt performance; The effects of different rubber particle size, dosage and fly ash dosage for modified asphalt penetration, low-temperature ductility, softening point and elastic restitution were analyzed to determine rubber particle size, optimal rubber dosage and fly ash dosage. They will affect the modified asphalt performance.