This European Standard specifies a method forThe determination of shell content of coarse aggregates.It applies to gravel or mixed aggregate containing gravel.The test method specified inThis part of this European Standard is applicable to particle size fractionsd4Di where Di 5 63 mm and di 2 4 mm.NOTE:For aggregate sizes with D > 63 mm and/or d < 4 mmThe test may be carriedout on particle size fractions d,lD, where Di I; 63 mm and di 2 4 mm.
EN 933-7:1998 history
1998EN 933-7:1998 Tests for geometrical properties of aggregates - Part 7: Determination of shell content - Percentage of shells in coarse aggregates