Standard Guide for Materials and Construction of Open-Graded Friction Course Plant Asphalt Mixtures

Importancia y uso:

4.1 This guide provides information to assist engineers with the design requirements and construction guidelines for paving an open-graded friction course (OGFC) surface layer. An OGFC is primarily used to improve the skid resistance and wear resistance of an asphalt pavement by providing an escape route for surface water beneath a moving wheel load. The asphalt mixture is typically produced with a low amount of fine aggregate particles and high air void content to provide a passageway of interconnected voids for moisture to drain away from the travelway. The film thickness of the asphalt and overall asphalt content are important for better stripping resistance and durability and aging properties.

Note 1: OGFCs may also be placed to reduce the tire-pavement interface noise and may also be placed to reduce the occurrence and severity of reflective cracking.

Subcomité:

D04.23

Referida por:

D7064_D7064M-21, D8418-21

Volúmen:

04.03

Número ICS:

93.080.20 (Road construction materials)

Palabras clave:

asphalt cement; asphalt rubber; modified asphalt cement; open-graded friction course;