EN 1771 : Products and systems for the protection and repair of concrete structures - Test methods - Determination of injectability using the sand column test (+AC:2005).

POTEAU APPAREILLAGE ESSAI BETON COLONNE SABLE ESSAI EPROUVETTE DETERMINATION ESSAI FENDAGE METHODE ESSAI INJECTION INJECTION CONSOLIDATION NORME EN PRODUIT PROTECTION RAGREAGE REPARATION STRUCTURE CONSTRUCTION