20SF

A fatigue-resistant size 20mm structural base course asphalt for heavy-duty asphalt pavements with a total asphalt thickness in excess of 175 mm

20SI

 A multipurpose structural size 20mm asphalt for intermediate course in heavy-duty pavements or base course in medium-duty pavements.

20SS

A very stiff size 20mm structural intermediate course asphalt sometimes used to increase pavement stiffness for very large scale heavy duty asphalt pavements

14H

A heavy duty size 14mm asphalt wearing course or regulating course for use in most heavily trafficked pavements

14N

A light to medium duty size 14mm wearing course or regulating course for use in light to moderately trafficked pavements

14SI

A multipurpose structural size 14mm asphalt for intermediate course in heavy-duty pavements or base course in medium-duty pavements

14V

A heavy-duty size 14mm asphalt wearing course for heavily trafficked intersections

10H

A heavy duty size 10mm asphalt wearing course or regulating course for use in most heavily trafficked pavements

10N

A light to medium-duty size 10mm wearing course or regulating course for use in light to moderately trafficked pavements

10L

A light-duty size 10mm wearing course with low air voids and higher binder content for use in very lightly trafficked pavements

10V

A heavy-duty size 10mm asphalt wearing course for heavily trafficked intersections

7N

A light to medium-duty size 7mm wearing course or regulating course for use in light to moderately trafficked pavements

7L

A light-duty size 7mm wearing course with low air voids and higher binder content for use in very lightly trafficked pavements