Where a CBGM base is used, the reinstatement must:
be designed to be suitable for immediate overlay (see requirements in A10.2) for immediate overlay; or
have achieved a compressive strength of C3/4 (curing of samples used to determine the minimum compressive strength suitable for overlay must be representative of the site conditions) before overlay; or
be trafficked and overlaid depending on the road type, as follows:
in Types 0 and 1 roads, the CBGM base may either be surfaced on the same day or allowed 7 days curing. In either case, the CBGM base must be allowed 7 days curing before trafficking.
in Types 2, 3 and 4 roads, the CBGM base may either be surfaced on the same day or allowed 3 days curing. If the surface is placed in the same day, the road may be opened to traffic the following day.
Continuously reinforced concrete bases that have been connected with dowel bars are not covered in this Code. Special conditions will apply and the reinstatement method must be agreed with the authority.