Print Email Facebook Twitter Electrochemical Performance of Low-Carbon Steel in Alkaline Model Solutions Containing Hybrid Aggregates Title Electrochemical Performance of Low-Carbon Steel in Alkaline Model Solutions Containing Hybrid Aggregates Author Koleva, D.A. Hu, J. De Wit, J.H.W. Boshkov, N. Radeva, T. Milkova, V. Van Breugel, K. Faculty Civil Engineering and Geosciences Department Design and Construction Date 2010-12-31 Abstract This work reports on the electrochemical performance of low-carbon steel electrodes in model alkaline solutions in the presence of 4.9.10-4 g/l hybrid aggregates i.e. cement extract, containing PDADMAC (poly (diallyl, dimethyl ammonium chloride) / PAA (Poly (acrylic acid)/ PDADMAC over a CaO core. The main objective was to determine if the addition of hybrid aggregates will lead to increased corrosion resistance of the steel surface layers, generally formed in the hereby investigated environmental medium. Further, it was expected that when chlorides are involved, as corrosion accelerating factor, the presence of hybrid aggregates will delay corrosion initiation and therefore lead to increased corrosion resistance. This investigation forms part of a novel approach to control steel corrosion in reinforced concrete, using self-healing mechanisms. The results from this study denote for indeed superior corrosion performance of steel in chloride-free and chloride containing alkaline solution, when hybrid aggregates are involved. The mechanisms are related to increased barrier effects of the formed layer and CaO release from the core of the aggregates. To reference this document use: http://resolver.tudelft.nl/uuid:5105bca8-8a2d-4d9e-9fcf-0fb8982245a8 DOI https://doi.org/10.1149/1.3496425 Publisher The Electrochemical Society ISSN 1938-5862 Source ECS Transactions, 28 (24), 2010 Part of collection Institutional Repository Document type journal article Rights © 2010 The Electrochemical Society Files PDF Koleva_2010.pdf 863.34 KB Close viewer /islandora/object/uuid:5105bca8-8a2d-4d9e-9fcf-0fb8982245a8/datastream/OBJ/view