Print Email Facebook Twitter Discussion of the evolution of the chloride migration coefficient of Portland cement concrete tested by the rapid chloride migration (RCM) test at long-term curing periods up to 5 years Title Discussion of the evolution of the chloride migration coefficient of Portland cement concrete tested by the rapid chloride migration (RCM) test at long-term curing periods up to 5 years Author Yu, Z. Ye, G. Hunger, M. Noort, R. Faculty Civil Engineering and Geosciences Department Structural Engineering Date 2013-12-31 Abstract Chloride-induced corrosion of reinforced concrete is one of the main deterioration mechanisms leading to shortening of the service life of concrete structures. Therefore, assessment of the resistance of concrete to chloride ingress plays an important role in predicting the service life of such structures. The Rapid Chloride Migration (RCM) test is one of the accelerated test methods commonly used in Europe. It is commonly assumed that for a properly cured Portland cement concrete without degradation, the chloride migration coefficient should decrease with increasing curing age due to on-going hydration and microstructure densification. However, recent experiments show that the rapid chloride migration coefficient of Portland cement concrete decreases at early curing age, but increases at later curing ages up to 5 years. In this paper, the evolution of the rapid chloride migration coefficient of Portland cement concrete during long-term curing periods up to 5 years is discussed. The test conditions for the RCM test and the test results obtained from RCM tests are described. Finally, possible causes for the increase in DRCM that occurred during late curing of the samples are investigated in order to explain this increase. To reference this document use: http://resolver.tudelft.nl/uuid:ac42938c-bd31-410c-9441-3f4aade6214f Publisher Rilem Publications S.A.R.L. ISBN 9782351581247 Source Proceedings of the 7th international conference on Concrete Under Severe Conditions: Environment and loading, CONSEC13, Nanjing, China, Sept. 23-25, 2013 Part of collection Institutional Repository Document type conference paper Rights (c) The authors Files PDF 297660.pdf 342.4 KB Close viewer /islandora/object/uuid:ac42938c-bd31-410c-9441-3f4aade6214f/datastream/OBJ/view