STUDY OF METHODS OF PROTECTING PRESTRESSING REINFORCEMENT

ETUDE DES MOYENS DE PROTECTION DES ARMATURES DE PRECONTRAINTE

THE MAIN OBJECT OF THIS INVESTIGATION IS TO STUDY PROTECTIVE SYSTEMS OTHER THAN INJECTION GROUTS (PAINTS, METALLIC COATINGS, CATHODIC PROTECTION, INHIBITORS, OIL AND GREASE ETC.) AND TO EVALUATE THE QUALITY OF PROTECTION THEY AFFORD. UP TO NOW TESTS HAVE BEEN CARRIED OUT ON SOLUBLE OIL AND GREASE USED FOR THE TEMPORARY PROTECTION OF STEEL. THE 1976 PROGRAMME AIMS AT DEFINING TESTS TO EVALUATE THE EFFECTIVENESS OF PROTECTIVE PRODUCTS; THIS IMPLIES: THE CONTINUATION OF TENSILE CORROSION TESTS IN THE LABORATORY; THE STUDY OF THE STABILITY OF THE PRODUCTS IN TIME; THE STUDY OF THE COMPATIBILITY OF THE PRODUCTS; THE CONTINUATION OF ATMOSPHERIC CORROSION TESTS. FINALLY, SOME CORROSION INHIBITORS WILL BE INVESTIGATED.