CORROSION OF GALVANIZED STEELS IN CEMENT MORTAR AND CONCRETE

KORROSIONSVERHALTEN VERZINKTER STAEHLE IN ZEMENTMOERTEL UND BETON

OBJECT OF USING GALVANIZED STEELS IN CONCRETE. BEHAVIOUR OF GALVANIZED STEELS IN CONCRETE. PULL-OUT TESTS. CORROSION TESTS. BASIC STUDIES OF THE CORROSION MECHANISM OF ZINC METAL AND ZINC LAYERS IN CEMENT MORTAR AND CONCRETE. CHEMICAL PROPERTIES OF THE ZINC WITH RESPECT TO CORROSION PROCESSES IN CONCRETE. BEHAVIOUR OF THE ZINC IN THE PRESENCE OF SODIUM HYDROXIDE AND CALCIUM HYDROXIDE. CALCIUM HYDROXIDE ZINCATE AS A REACTION PRODUCT. CHEMICAL AND PHYSICAL PROPERTIES. REACTIONS OF THE CALCIUM HYDROXIDE ZINCATE WITH CLINKER PHASES OF THE CEMENT. INFLUENCE ON THE CEMENT HARDENING. INFLUENCE OF CHROMATES ON THE REACTION BETWEEN ZINC AND CALCIUM HYDROXIDE. PRESENCE AND BEHAVIOUR OF CHROMATES IN CEMENT. BEHAVIOUR OF GALVANIZED STEELS IN CONCRETE. DESCRIPTION OF THE TESTS. INFLUENCE OF THE TYPE OF CEMENT. RESULTS OF THE TESTS. PROTECTIVE ACTION OF THE ZINC IN CONCRETE CONTAINING CHLORIDE.