INFLUENCE OF AMOUNT OF CRUB RUBBER OF USED CAR TIRES AND HEATING TIME ON RUBBER-ASPHALT PROPERTIES

摘要

In the paper there are presented research results on rubber-asphalt with different amount of scrub rubber of used car tires. Rubber-asphalt binder were subjected to heating process varying from 20min to 6 hours. Changing of rubber-asphalt penetration, softening point, viscosity or breaking point scrub rubber addition during heating process was determined. Based on research results technological process temperatures and approximate demanded heating time were determined. It was also proved rubber-asphalt technological properties improvement comparing to base asphalt.