Contents
Foreword
Scope
2
Normative references
3
Principle
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.
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
Reference concrete mixes
6.1
General.
.
6.2
Reference concrete with 16 mm or 20 mm aggregate (see Table 1)
6.3
Reference concrete with 8 mm or 10 mm 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
Report.
Annex A (informative) Grading curves
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