Evaluation of fracture and moisture damage performance of wax modified asphalt mixtures


Das P. K. , TAŞDEMİR Y. , Birgisson B.

ROAD MATERIALS AND PAVEMENT DESIGN, vol.13, no.1, pp.142-155, 2012 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 13 Issue: 1
  • Publication Date: 2012
  • Doi Number: 10.1080/14680629.2011.644120
  • Title of Journal : ROAD MATERIALS AND PAVEMENT DESIGN
  • Page Numbers: pp.142-155

Abstract

In this study the fracture and moisture damage characteristics of wax modified asphalt mixtures were evaluated. Two types of commercial waxes (FT-paraffin and Asphaltan B) were added to bitumen of penetration grade 70/100. Using this wax modified and unmodified bitumen; total 48 specimens were produced from two sources of aggregates and two levels of gradation. Bitumen properties were determined by conventional test methods, Dynamic Shear Rheometer (DSR) and Bending Beam Rheometer (BBR) testing. Thermal Stress Restrained Specimen Test (TSRST) was used to evaluate low temperature cracking resistance and cracking behavior of asphalt mixture was investigated at 0 degrees C using Superpave Indirect Tensile Test (IDT).