Table 4.

Concrete composition.

Mix ingredients	CR[kg/m3]	CF[kg/m3]
Cement CEM I 42.5R	425	425
Water	157	157
Coarse aggregate, 8–16 mm	524	524
Medium aggregate, 2–8 mm	648	648
Sand, 0–2 mm	576	576
Superplasticizer	2,97	2,97
Processed masks	–	2
w/c	0.37	0.37
Workability, slump test [57], [mm]	155	159