A Review of the Effects of Rubber and Plastic Additives on the Properties of Bitumen and Asphalt Concrete

This paper is a review of researches that have been conducted on rubber and plastic modified binders over the last two decades. About the rubber and plastic modified binders it has been proved that both additives will increase the viscosity and reduce the temperature sensitivity of binder. Moreover, both of these materials will increase the mixture stability and tensile strength especially at higher service temperatures. In contrast to rubber type additives, waste plastic bottles (PET) have no beneficial effects on moisture resistance of asphalt mixtures. Also results indicate increasing the fatigue life of asphalt mixtures is the predominant effects of rubber and plastic additives.