ACCELERATED CHLORIDE PENETRATION TEST RESULTS FOR DIFFERENT CONCRETE COMPOSITIONS
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Published:2002
A S Poupeleer, D Van Gemert, 2002. "ACCELERATED CHLORIDE PENETRATION TEST RESULTS FOR DIFFERENT CONCRETE COMPOSITIONS", Challenges of Concrete Construction: Volume 6, Concrete for Extreme Conditions: Proceedings of the International Conference held at the University of Dundee, Scotland, UK on 9–11 September 2002, Ravindra K. Dhir, Michael J. McCarthy, Moray D. Newlands
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Chloride contamination in real structures is a long-term process. It takes a long time to initiate the degradation process in most cases. However, once the propagation is started the degradation can go really fast. To make the investigation of the subject possible in the laboratory, an accelerated test method is used to analyse the corrosion problems. An accelerated chloride penetration test based on an electrochemical principle is executed on cylindrical samples. Voltages of 3 or 5 Volt are applied over the specimens and the electrolyte. Besides, the different voltages, used to accelerate the movement of the chlorides, and the effect of chlorides mixed into the concrete is examined. Next to all these parameters different concrete mixes are employed. In particular the influence of the test conditions is evaluated. The property to make statements about all the circumstances and the used samples is the CPT (chloride penetration time). Also the evolution of the current, measured continuously during the tests, is discussed.
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
CONCLUSIONS
REFERENCES
