Asphalt Definitions and Terms

Home Knowledge Base Asphalt Terms Open-Graded Asphalt Friction Course

Latest Posts

Statewide Special Provision SP 001-001

TxDOT Letting Report 2024 July

Firework Safety

SS 3007 Bonding Course

SS 3006 Underseal Course

Open-Graded Asphalt Friction Course

Open-graded asphalt friction course is a pavement surface course consisting of a high-void asphalt plant mix that permits rapid rainwater drainage through the course and out the shoulder. A large percentage of one-sized coarse aggregate characterizes the mixture. This course prevents tire hydroplaning and provides a skid-resistant pavement surface.