The embossing in the water partition ensures better adhesion to concrete and prevents the partition from rotating when unscrewing the auxiliary elements.
Holes in the wall left by the cones should be filled with a special mortar or a concrete plug fixed with two-component adhesive should be used.
When using mounting cones, a concrete covering c = 30 mm or c = 50 mm is obtained.
When using steel-plastic mounting cones of the 15 type, concrete covering c = 50 mm is obtained.
