3.4

Surface Finish

Surface Finish

Designer

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