Reference Specifications for Civil Engineering Work 2001

4)ASPHALT SURFACING

Use Brisbane City Council standard asphalt types in accordance with Table 4.1. Refer annexure.

Mix type	Nominal aggregate size	Typical applications
1*	5 mm	Thin wearing course, footpaths, sheet patching, and overlays in local residential streets.
2*	10 mm	Surfacing course for local access roads (type A and B pavements) and neighbourhood access roads (type C pavement).
3*	18 mm	Surfacing course for district access/ suburban route (type D pavement) and industrial access (type E pavement). Surfacing and structural courses for arterial route (types F and G pavements).
4*	35 mm	Unsuitable for final surfacing. Generally used as structural layers for deep lift asphaltic concrete pavements.

Table 4.1 – Mix design applications

* Denotes dense graded asphalt