STRESS CORROSION OF PRESTRESSING STEELS; APPLICATION OF THE RESULTS OF SHORT TERM TESTS TO BEHAVIOUR UNDER PRACTICAL CONDITIONS

SPANNUNGSKORROSION VON SPANNSTAEHLEN: UEBERTRAGBARKEIT DER ERGEBNISSE VON KURZZEITPRUEFVERFAHREN AUF DAS VERHALTEN UNTER PRAXISAEHNLICHEN VERHAELTNISSEN

THE AIM IS TO DEVELOP STANDARD LABORATORY TESTING METHODS WHICH CAN BE USED TO EVALUATE THE STRESS CORROSION BEHAVIOUR OF PRESTRESSING STEELS UNDER PRACTICAL CONDITIONS. SPECIAL STUDIES ARE TO BE MADE ON DAMAGED MATERIAL TO DETERMINE THE SENSITIVITY OF THE PRESTRESSING STEEL, AND COMPARATIVE STUDIES ARE TO BE CARRIED OUT ON COMMERCIALLY AVAILABLE PRESTRESSING STEELS WHICH WILL TAKE ACCOUNT OF THE EFFECTS OF DAMAGE AND CORROSIVE SURFACE CHANGES.