 BENOR-certificationThe BENOR-mark is granted per production unit and per category of concrete : - Category A : classes from C8/10 up to C30/37 included
- Category B : classes from C35/45 up to C50/60 included
- Category C : classes above C50/60
References: TRA 550, NBN EN 206-1 (2001) and NBN B15-001 (2004) - Categorie M : hydraulically bound mixtures
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