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HAUC
HAUC

Mixture performance requirements

A10.2.17
Layer thickness and compressive strength at an age of 28 days requirements must be in accordance with Table A10.6.
Table A10.5 Minimum binder or binder constituent additions
Layer Road type Footway/ footpath/ cycle track
0 1 2 3 4
Combined Binder course & Sub-base NP NP NP NP NP 150 mm C1.5/2
Base NP NP NP

300 mm
C1.5/2

200 mm
C1.5/2
---
Base & sub-base NP

450 mm
C3/4

450 mm
C3/4

450 mm
C1.5/2

350 mm
C1.5/2

---
Sub-base or below 150 mm
C1.5/2
150 mm
C1.5/2
150 mm
C1.5/2

150 mm
C1.5/2

150 mm
C1.5/2

150 mm
C1.5/2

Maximum strength class
at 28 days

C9/12 C8/10

Notes:

NP = Not permitted

Minimum asphalt overlay thickness as per A3 to A7

HBMs are not permitted as CBGM base replacement