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According to the analysis made using Powers model and considering the water cementitius ratio (a/mc) stipulated by CIRSOC 201 (2013) regulation is 0.45 for under water concrete, low permeability or concrete subjected from mild to moderate chemical attacks, waterproof concretes may be developed incorporating up to 20 % of calcareous material, if same benefit is desired in concretes with calcareous material content up to 35 %, very high hydration degrees will be necessary (> 90 %).