Tensile bond characteristics of underwater coatings for marine concrete structures

Title
Tensile bond characteristics of underwater coatings for marine concrete structures
Author(s)
김민욱; 원보름
KIOST Author(s)
Kim, Min Ook(김민욱)
Publication Year
2019-09-19
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.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/22402
Bibliographic Citation
15th International Congress on the Chemistry of Cement, pp.771, 2019
Publisher
Research Institute of Binding Materials Prague and the Czech Cement Association
Type
Conference
Language
English
Publisher
Research Institute of Binding Materials Prague and the Czech Cement Association
Related Researcher
Research Interests

Marine Structures,Recycling,Ocean Energy,해양구조물,해양쓰레기 재활용,해양에너지

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