Laboratory Evaluation on Performance of Large Particle Size OGFC Asphalt Mixtures with Different Air Voids

OGFC (open graded friction course) asphalt mixture is one of the bituminous materials of wearing course for flexible pavement. The permeable mixture allows water to flow through the material and drain out to the sides. The material significantly reduces splash/spray from vehicles and reduces vehicle noise. The air void and particle size of OGFC asphalt mixture are important factors which influence the material performance properties and permeability. In this research, the large particle size OGFC-20 asphalt mixtures with three air voids (18%, 21% and 24%) were prepared. The temperature stability, water stability, and permeability of OGFC asphalt mixtures were evaluated and compared to OGFC-13 (popularly used in China) to ensure better drainage, noise reduction quality, and durability. The results showed that the Marshall and dynamic stability reduced with the increase of air voids. Under the same air voids, the stability of OGFC-20 asphalt mixture is significantly more than that of OGFC-13. Furthermore, the permeability coefficient of OGFC asphalt mixture increased as the increasing of air voids. It showed a good linear correlation between them. To balance the performance and the permeability of OGFC asphalt mixture, OGFC-20 with 21% air voids is recommended for wearing course of flexible pavement.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 325-333
  • Monograph Title: Challenges and Advances in Sustainable Transportation Systems

Subject/Index Terms

Filing Info

  • Accession Number: 01527158
  • Record Type: Publication
  • ISBN: 9780784413364
  • Files: TRIS, ASCE
  • Created Date: May 15 2014 3:02PM