How to read a classification:

C or R:
C = cement-based product
R = epoxy product

Requirements of CG 1:
Flexural tensile strength after 28 days of dry storage as well as after frost and thaw:
≥3,5 N/mm²
Compressive strength after 28 days of dry storage as well as after frost and thaw:
≥15 N/mm²
Water absorption after 30 minutes: ≤5 g
Water absorption after 240 minutes: ≤10 g
Linear shrinkage: ≤2 mm/m
Abrasion resistance: ≤2000mm³

Requirements of CG 2:
Flexural tensile strength after 28 days of dry storage as well as after frost and thaw:
≥3,5 N/mm²
Compressive strength after 28 days of dry storage as well as after frost and thaw:
≥15 N/mm²
Water absorption after 30 minutes: ≤2 g
Water absorption after 240 minutes: ≤5 g
Linear shrinkage: ≤2 mm/m
Abrasion resistance: ≤1000mm³

Requirements of RG:
Flexural tensile strength after 28 days of dry storage:
≥30 N/mm²
Compressive strength after 28 days of dry storage:
≥45 N/mm²
Water absorption after 240 minutes: ≤0,1 g
Linear shrinkage: ≤1,5 mm/m
Abrasion resistance: ≤250mm³