Skip to main content
HAUC
HAUC

SMA binder course mixtures

A2.2.6
Roads Type 0 and 1
  1. The preferred binder course mixture is SMA 20 bin 40/60 with wheel tracking requirements meeting classification 2.
  2. Alternative permitted mixture is SMA 14 bin 40/60 with wheel tracking requirements meeting classification 2.
A2.2.7
Roads Type 2, 3 and 4 The preferred binder course mixtures are:
  1. SMA 20 bin 40/60 or SMA 20 bin 100/150.
  2. Openings up to 500 mm width – as a) or SMA 14 bin 40/60 or SMA 14 bin 100/150.