The durability of concrete constructions in aggressive media has been studied. We prepared samples of ordinary concrete with different natural pozzolana content of beni-saf as a substitute for cement. The main objective of this experimental work is to study the valorization of the natural pozzolana of beni-saf on the mechanical properties (compressive strength) and the durability of concrete (corrosion) in the aggressive environment. Through experimental results obtained, we conclude that beni-saf's natural pozzolana has a positive effect on mechanical properties and the effect is somewhat acceptable for concrete durability especially in the long run.