The S38 Adoption Process

Key Build Stage 8 Road Surface Course

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Road Surface Course ChecksEvidenceFrequency
Verification of materials (check PSV requirements and chipping source for HRA). Tickets All sources
Surface of binder course clean and free of contamination. Visual All lengths
Inspect completed surface regularity (check for drainage problems and possible areas of ponding). Visual All lengths
Bulk Sample Testing - Coated Chippings. Samples One per 20 tonne
Bulk Sample Testing - HRA/CGSC. Samples One per 150 tonne
Texture depth testing for HRA. Testing All wheel paths
Cores to assess thickness compaction and bond of all bound layers. Samples One per 100m (minimum three per site)
Rolling straight edge tests. Testing All wheel paths