2024-03-28T09:14:13Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00016834
2023-01-16T04:40:17Z
320:502:503
DURABILITY OF STEEL BRIDGE PAINT SYSTEMS CONSIDERING EDGE GEOMETRY OF STEEL PLATE
SHIMIZU, Yoshiyuki
WATANABE, Naohiko
ITOH, Yoshito
open access
steel bridge coating system
edge geometry
corrosion
accelerated exposure test
Paint and metallic coating systems have widely been used to prevent corrosion attacks and to keep good performance of steel bridges under corrosive environments. However, corrosion damages are often initiated from sharp free edges of bottom flanges and bolted connections, where securing a desired thickness of coating films is difficult. In this study, an accelerated exposure test was conducted for 600 days on steel plates with 21 different conditions: seven types of bridge coating systems and three types of edge geometries. The test results show that the edge geometry had a significant influence on durability of the paint coating systems whereas the similar influence was not found for the metallic coating systems. Durability of the coating systems is discussed in this paper in terms of initial coating thickness, rust initiation time, propagation rate at the edges, and residual thickness of the coating for each of edge geometry and each coating type.
The 7th German-Japanese Bridge Symposium, July 30-August 1, 2007 Osaka, JAPAN (GJBS07)
2007-07
eng
conference paper
VoR
http://hdl.handle.net/2237/18861
https://nagoya.repo.nii.ac.jp/records/16834
https://nagoya.repo.nii.ac.jp/record/16834/files/B-111.pdf
application/pdf
1.3 MB
2018-02-20