Kasthurirangan Gopalakrishnan

Stripping Resistance of Asphalt Mixtures with Recycled Polymer Waste Kasthurirangan Gopalakrishnan

Moisture-induced damage in asphalt pavements as a result of stripping is a complex and serious problem in many parts of the world. Polymer additives are commonly added to asphalt to decrease temperature susceptibility but they have also shown to improve adhesion and cohesion and resistance to moisture- induced damage. This allied with the increasing difficulty in disposing polymer waste products and shifting of focus towards sustainability, has led to the recycling of polymers in asphalt to improve asphalt cement properties. Ethylene Propylene Diene Monomer (EPDM) is a polymer waste in Louisiana. Earlier studies have shown that chemically treated EPDM could be used as a viable modifier in asphalt cement and, when incorporated in asphalt concrete, the mixes showed enhanced stiffness and creep properties. This book primarily discusses the moisture susceptibility behavior of conventional and EPDM modified asphalt concrete mixes through a comprehensive laboratory test program involving different commercial antistripping additives.