Estimating moisture susceptibility of asphalt modified with alumina trihydrate

Abstract

Estimating moisture susceptibility of asphalt modified with alumina trihydrate The moisture susceptibility of asphalt containing alumina trihydrate (ATH) was assessed through the surface free energy. Physical properties and flame retardancy of ATH samples were also investigated. For research purposes SBS modified asphalt samples with different dosages (0-14 %) of ATH were prepared. Increased viscosity, softening point limiting oxygen index and lower penetration ductility, were investigated for the ATH modified samples. ATH has a significant negative effect on the moisture-induced damage potential of asphalt mixture from the view of micromechanisms.

Rheological characteristics of bitumens prepared with process oil

“…Therefore, bitumen performance is directly related to manufacturing conditions. One of the most frequently used methods to overcome this burning issue is the physical or chemical modification of bitumens by various additives [8]. With an increase in traffic volume and axle loads, the demand placed by communities for safe and better quality travel has imposed the need to build durable asphalt pavements [9].…”