Tests for geometrical properties of aggregates - Determination of percentage of crushed and broken surfaces in coarse aggregate particles not-eligible by eliminating defects which generate

by eliminating defects which generate potential failures

BS EN 60118-15 describes a recommended speech-like test signal

Qualification by static calculation

The method is applicable to products containing at least 90 % of tetrasodium pyrophosphate and in the absence of more condensed forms of phosphates

Tests for geometrical properties of aggregates - Determination of percentage of crushed and broken surfaces in coarse aggregate particles not-eligible by eliminating defects which generate1 Scope This European Standard specifies a method for the determination of the percentage of particles with crushed and broken surfaces in a sample of natural coarse aggregate. It applies to gravel or mixed aggregate containing gravel. The test method specified in this part of this European Standard is applicable to particle size fractions di Di where Di 63 mm and di 4 mm. NOTE 1 For aggregate sizes with D > 63 mm and or d < 4 mm the test may be