Coatings 2016, 6(3), 32; https://doi.org/10.3390/coatings6030032
Graphite–Cement Paste: A New Coating of Reinforced Concrete Structural Elements for the Application of Electrochemical Anti-Corrosion Treatments
Civil Engineering Department, University of Alicante, P.O. Box 99, 03080 Alicante, Spain
†
These authors contributed equally to this work.
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Author to whom correspondence should be addressed.
Academic Editor: Paul Lambert
Received: 31 May 2016 / Revised: 13 July 2016 / Accepted: 15 July 2016 / Published: 28 July 2016
(This article belongs to the Special Issue Surface Treatments and Coatings for Structural Steel and Reinforced Concrete)
Abstract
This paper reviews research carried out towards the development of a novel conductive coating for reinforced concrete structures in order to enable the application of electrochemical anti-corrosion treatments. The coating is composed of a hardened paste containing graphite powder and cement. The applied techniques were electrochemical chloride extraction (ECE), cathodic protection (CP), and cathodic prevention, as well as combined treatments such as ECE-CP. This research has demonstrated their efficiency when using the new conductive coating as an anode system. The influence of the shape of the structural elements on the performance of the electrochemical treatments was also studied. Several characteristics of the coating have been determined, such as conductivity, durability, adhesion to the concrete surfaces, and ease of application. The results demonstrate the adequacy of using this coating as the anode for anti-corrosion treatments on reinforced concrete structural elements of different shapes, for the purpose of extending service life. View Full-TextKeywords:
reinforced concrete; graphite-cement paste; electrochemical chloride extraction; cathodic protection; cathodic prevention
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Climent, M.-Á.; Carmona, J.; Garcés, P. Graphite–Cement Paste: A New Coating of Reinforced Concrete Structural Elements for the Application of Electrochemical Anti-Corrosion Treatments. Coatings 2016, 6, 32.
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