Applications & Innovations

Better Roads Staff - Sep 06, 2012

Whispering Asphalt OGFCs cut spray and can be very, very quiet. For several years, a number of states have placed open-graded friction courses (OGFCs) as a wearing course on their high-volume, high-speed roadways. An OGFC is a thin, permeable mix with high air ...

Road Science

Better Roads Staff - Sep 07, 2011

Science Friction Thin Open-Graded Surfacings Drive Market By Tom Kuennen, Contributing Editor Now, more than ever, thin open-graded friction courses (OGFCs) are driving the market for drainable, high-friction, noise-attenuating asphalt mixes. This new generation of OGFCs is being bolstered by the advent of high-performance ...