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31. Role of reactive vitreous coatings in reinforced concrete in nuclear plant construction



Title: 31. Role of reactive vitreous coatings in reinforced concrete in nuclear plant construction
Author(s): C. Weiss, S.W. Morefield, P.G. Malone, M.L. Koenigstein
Paper category : conference
Book title: NUCPERF 2009 - Long Term Performance of Cementitious Barriers and Reinforced Concrete in Nuclear Power Plants and Waste Management
Editor(s): V. L'Hostis, R. Gens, C. Gallé
Print-ISBN: 978-2-35158-072-1
e-ISBN: 978-2-35158-087-5
Publisher: RILEM Publications SARL
Publication year: 2009
Pages: 287 - 294
Total Pages: 8
Nb references: 19
Language: English


Abstract: Reinforced concrete is the basic construction material in commercial nuclear power plants in the United States. The continued performance of these critical concrete structures is necessary to ensure the safety of plant personnel and the public in the surrounding area.
Designs for complex concrete and steel structures such as containment domes, where steel frames and steel reinforcement have to bond securely to the surrounding concrete, encounter the problem making concrete adhere to steel. Concrete condition surveys conducted at nuclear power plants have shown that problems can develop at nuclear plants during operations that are typical of aging reinforced concrete structural members. Corrosion of the embedded steel is especially a problem where the concrete is exposed to moisture and oxygen can diffuse down to the concrete-steel interface and cause rust formation, expansion and cracking. The recent development of new engineered coatings for reinforcing steel that are based on using an alkali-resistant vitreous enamel to coat the steel and to fuse reactive calcium silicates and aluminates to the surface of the steel can be used to address both the bonding and the corrosion problem in reinforced concrete.


Online publication: 2009-11-16
Publication type : full_text
Public price (Euros): 0.00