Fraction 4/8mm

Fraction 4/8 mm – for the production of concrete, felt concrete, paving tiles and products


Tested feature, markingTest resultsAllowed range of result values
Composition ofelongated andflat aggregates0.2% of the massBDS EN 12620:2002+A1:2008/NA:2008
Washable particle content0.2% of the massBDS EN 12620:2002+A1:2008/NA:2008
Specific particle density:- Particle density in dry condition

– Particle density in saturated surface dry condition

-Apparent particle density

2.60 mg/m3

2.62 mg/m3


2.65 mg/m3

BDS EN 12620:2013No requirement

No requirement


No requirement

Water absorption, WA0.8% of the mass≤1 for category WA241BDS EN 12620:2013
Acid-soluble sulfates content, SO30.04% of the mass≤1 BDS EN 12620:2002+A1:2008/NA:2008
Total sulfur content0.03% of the mass≤1.5 for concrete from groups I and ≤1 for concrete from groups II, III and IVBDS EN 12620:2002+A1:2008/na:2008
Chloride content0.01% of the massNo requirementBDS EN 12620:2013
Clay lumps and admixtures content0.0% of the mass≤1 for concrete from groups I and II≤0.5 for concrete from groups III and IV

BDS EN 12620:2002+A1:2008/na:2008

Humus contentDoes not containBDS EN 12620:2002+A1:2008/na:2008
Crushing ability on static load8.00% of the mass≤12 for all groups and classes of concrete≤ B60 and ≤16 for I, II and III concrete groups and classes ≤B25BDS EN 12620:2002+A1:2008/NA:2008


All products, offered by DDF JSC Ruse, meet the requirements of BS EN 12620:2002 and have a certificate for factory production control, issued by the Organization for technical conformity, according to the Ordinance on essential requirements and conformity assessment of construction products, Directive 89/ 106 EEC.

The company has a laboratory which controls the quality of products.