Maçonnerie en blocs de béton, produite par une entreprise en possession de la certification du système de qualité selon UNI EN-ISO 9001 : 2008 et UNI EN-ISO14001 : 2004, de type BC20 à six trous
Spécification
Manufacturing dimensions equal to 490x195x192 mm, ribs thickness 20 mm, dry weight equal to 19 kg, drilling percentage equal to 55% [F4], average normalized resistance> = 4 N / mm2, dimensional tolerances equal to +/- 2 mm in height, +1 - 3 mm in length, -1 + 3 mm in width, thermal resistance of dry wall 0.378 m2 K / W, laid with mortar M2. Included: the formation of edges and folds, the appellations, the processing for styling and cleaning of joints