3.4
Surface Finish
Designer
- Specification of surface finish types (to EN 13670)
- For Formed Finishes
- For Unformed Finishes
- Surface finish type designation /description to be aligned/consistent between architect and structural engineer
- Reference panels / Benchmarks or Sample panel requirements
- Joint layout (Formed & Unformed)
- Tie bar / panel layout
- Allowable crack width
- Approval of Finish
Builder
- Selection of suitable formwork systems / materials
- Tie bar / panel layout
- Selection of suitable pour sizes / joints etc.
- Selection of suitable release agents
- Selection of suitable curing agents /curing systems
- Workmanship requirements (e.g. placing & compaction methods)
- Construction of Benchmarks /Sample Panels (high quality finish)
- Protection of finished work / ambient conditions for exposed surfaces
- Making good methods / requirements
Producer
- Design appropriate concrete mix :
- Binder content
- Aggregate selection
- W/C ratio
- Workability class
- Setting time requirements (for adequate finishing time)
- Mix consistency
- Delivery requirements
Further Guidance
Main Standards – Reference
I.S. EN 13670
Other Guidance Documents
Concrete Society Technical Report No. 52 : Plain Formed Finishes
The Concrete Centre (MPA) : Visual Concrete
The Concrete Society (UK) CS170 Visual Concrete – Finishes
The Concrete Society (UK) Concrete on Site 8 "Making good and finishing"
TII CC-SPW-01700 Clause 1708