BS EN 933-6:2014

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reference materials
6 Apparatus
7 Determination of the flow coefficient of
  coarse aggregate
8 Determination of the flow coefficient of
  fine aggregate
Annex A (informative) - Example of test data
        sheet - coarse aggregate
Annex B (informative) - Precision
Annex C (informative) - Example of test data
        sheet - fine aggregate
Bibliography

Describes the reference method used for type testing, and in case of dispute, for determining the flow coefficient of coarse and fine aggregates.

This European Standard specifies the reference method used for type testing, and in case of dispute, for determining the flow coefficient of coarse and fine aggregates. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the reference method has been established. Examples of advanced test methods can be found in the Bibliography.

This European Standard applies to coarse aggregate of sizes between 4 mm and 20 mm and to fine aggregate of size up to 2 mm.

NOTE 1 For coarse aggregates between 4 mm and 20 mm, the flow coefficient is linked with the percentage of crushed or broken surfaces of an aggregate and can therefore be used in association with the method specified in EN 933–5. Shape and surface texture characteristics also influence the result.

NOTE 2 Experience of this test has been generally limited to natural aggregates.