NBN EN 1766 : 2000

Foreword
1 Scope
2 Normative references
3 Principle
4 Equipment
    4.1 Concrete mixer (forced action pan mixer)
    4.2 Moulds
    4.3 High frequency vibrating table
    4.4 Grit-blasting equipment
    4.5 Surface roughness measuring equipment
5 Materials
    5.1 Aggregates
    5.2 Mixing water
    5.3 Cement
    5.4 Admixtures
    5.5 Grit for surface preparation by blasting
    5.6 Silica sand for measuring roughness
6 Reference concrete mixes
    6.1 General
    6.2 Reference concrete with 16mm or 20mm
          aggregate (see Table 1)
    6.3 Reference concrete with 8mm or 10mm
          aggregate (see Table 1)
    6.4 Specimen preparation
    6.5 Concrete curing and storage
7 Surface preparation and roughness index determination
    7.1 Surface preparation
    7.2 Measurement of the Roughness index
8 Report
Annex A (informative) Grading curves

Establishes the characteristics, composition and preparation method for reference concrete substrates used in test methods for measuring performance criteria of systems and products for protecting and repairing concrete structures.