Inspecting and testing the build

Key Build Stage 5 Road binder course

Road binder course checks

Evidence

Frequency

Verification of materials (check correct binder penetration)

Tickets

All sources

Check layout of the site in accordance with S38 agreement plan.

Visual

All lengths

Inspection of top of binder course (potential drainage problems)

Visual

All lengths

Cores to assess thickness, compaction and bond

Visual

One per 100m

(minimum three per site)

Ensure sufficient depth is provided to allow for 40mm of surface course.

Visual

All lengths

Rolling Straight Edge tests

Testing

As required