POZZOLANICO CEM IV/A 42,5R is a normalised high-strength cement. It has high initial strength, composition in compliance with UNI EN 197/1, clinker 65-89%, pozzolan, fly ash and any minor constituents 35-11% and adequate addition of calcium sulphate to regularise setting. The product is characterised by the lower amount of clinker in favour of mineral components with pozzolanic activity. Reducing the clinker content saves natural resources on the one hand and reduces CO2 emissions on the other.