Browse > Article
http://dx.doi.org/10.9765/KSCOE.2018.30.6.298

Tensile Bond Characteristics between Underwater Coating Materials and Concrete Substrate  

Kim, Min Ook (Coastal Development and Ocean Energy Research Center, Korea Institute of Ocean Science and Technology)
Jeong, Yeonung (Department of Civil and Environmental Engineering, Seoul National University)
Kang, Sung-Hoon (Department of Civil and Environmental Engineering, Seoul National University)
Moon, Juhyuk (Department of Civil and Environmental Engineering, Seoul National University)
Yi, Jin-Hak (Coastal Development and Ocean Energy Research Center, Korea Institute of Ocean Science and Technology)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.30, no.6, 2018 , pp. 298-305 More about this Journal
Abstract
In this study, we investigated the tensile bond characteristics of underwater coating materials, in order to obtain useful information in support of repair work for marine and coastal concrete structures. Test variables included type of underwater coating, surface conditions of the concrete substrate, and environmental conditions. Pull-off tensile bond strength was measured at 24 h after applying underwater coatings to concrete substrates, in compliance with the procedures specified in ASTM C1583. Failure modes (coating, interface, and parent concrete) for each coating were identified through visual inspection, and comparisons were made based on measured bond strength. The tensile bond strength decreased underwater compared to that under dry conditions, while no significant effect of surface roughness on the measured bond strength was observed in underwater tests. Key aspects that need to be considered regarding selection and use of underwater coating materials for marine and coastal concrete structures were discussed.
Keywords
concrete substrate; underwater coating material; tensile bond strength;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Pan, X., Shi, Z., Shi, C., Ling, T.C. and Li, N. (2017). A review on concrete surface treatment Part I: Types and mechanisms. Constr. and Build. Mater., 132, 578-590.   DOI
2 Santos, P.M.D. and Julio, E.N.B.S. (2011). Factors affecting bond between new and old concrete. ACI Mater. Journal, 108(4), 449.
3 Song, Y.P., Song, L.Y. and Zhao, G.F. (2004). Factors affecting corrosion and approaches for improving durability of ocean reinforced concrete structures. Ocean Engineering, 31(5-6), 779-789.   DOI
4 Almusallam, A.A., Khan, F.M., Dulaijan, S.U. and Al-Amoudi, O.S.B. (2003). Effectiveness of surface coatings in improving concrete durability. Cem. and Concr. Compos., 25, 473-481.   DOI
5 Brenna, A., Bolzoni, F., Beretta, S. and Ormellese, M. (2013). Long-term chloride-induced corrosion monitoring of reinforced concrete coated with commercial polymer-modified mortar and polymeric coatings. Constr. and Build. Mater., 48, 734-744.   DOI
6 Costa, A. and Appleton, J. (2002). Case studies of concrete deterioration in a marine environment in Portugal. Cem. and Concr. Compos., 24(1), 169-179.   DOI
7 Kim, M.O., Bordelon, A., Lee, M.K. and Oh, B. H. (2016). Cracking and failure of patch repairs in RC members subjected to bar corrosion. Constr. and Build. Mater., 107, 255-263.   DOI
8 Kim, M.O., Qian, X., Lee, M.K., Park, W.S., Jeong, S.T. and Oh, N.S. (2017). Determination of structural lightweight concrete mix proportion for floating concrete structures. Journal of Korean Society of Coastal and Ocean Engineers, 29(6), 315-325.   DOI
9 Medeiros, M.H. and Helene, P. (2009). Surface treatment of reinforced concrete in marine environment: Influence on chloride diffusion coefficient and capillary water absorption. Constr. and Build. Mater., 23(3), 1476-1484.   DOI
10 Moradllo, M.K., Shekarchi, M. and Hoseini, M. (2012). Time-dependent performance of concrete surface coatings in tidal zone of marine environment. Constr. and Build. Mater., 30, 198-205.   DOI