A Study of Moisture Damage in Warm Mix Asphalt Concrete with Reclaimed Asphalt Pavement

Currently, many methods and technologies have been introduced to reduce new material usage and energy consumption. One approach is using reclaimed asphalt pavement ( RAP) as renewable material which allows natural resources conservation. Moreover, applying warm mix asphalt (WMA) technology can reduce energy consumption comparing to hot mix asphalt (HMA). One of the major concerns with WMA is moisture sensitivity which causes more chance of stripping occurrence. The aim of this study is to investigate moisture sensitivity of WMA with four RAP proportions (0% , 20% , 35% and 50% ) comparing to HMA. Effect of two additive types (Sasobit® and Advera®) and two lower mixing temperatures (150°C and 130°C) on the moisture damage were also evaluated. Results from this study show that the Sasobit® modified WMA with 35% and 50% RAP have high moisture damage resistance as indicated with TSR greater than 80%. for both 150°C and 130°C mixing temperatures.

Language

  • English
  • Japanese

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01678815
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Apr 25 2018 3:08PM