3.11

Tolerances

Workability

Designer

Designer
  • Specify permitted tolerances/ tolerance class
    • Geometrical/dimensional
    • Inserts /opes
    • Surface finish

Builder

  • Pre-concreting checklist
  • Deflections post striking – Survey pre- and post- strike
    • Level survey required
    • Edge Slab survey – survey of line and level
  • Differences in tolerances between engineer’s and architect’s specifications ?

Producer

  • Check tolerances for batching equipment
  • Check tolerances for batching constituents

Further Guidance

Main Standards – Reference

I.S. EN 13670

Clause 10 & Annex G

I.S. EN 206 +NA

Clause 9

Other Guidance Documents

Concrete Industrial Ground Floors ; a guide to design and construction, TR 34 (4th edition) : Concrete Society

Deflections in concrete slabs and beams, TR 58 ; Concrete Society

TII CC-SPW-01700 Clause 1728