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Finger expansion joint
PRODUCT OVERVIEW
VHF finger expansion joints made by Vinh Hung Investment and Production Company Limited (Vinh Hung IP) compliance with following AASHTO LRFD standard.
VHF finger expansion joints have high accuracy and convenience for the new construction and installation, repair and replacement of the old expansion joints as well as inspection and maintenance works in service.
VHF finger expansion joint accommodates to medium movement and big movement, and can be used for both straight and skew bridges.
1. CLASSIFICATIONS
VHF finger expansion joint products are divided into 2 types according to the connection method as follows:
2. PRODUCT COMPONENTS
VHF finger expansion joints are integratedly manufactured at Vinh Hung IP factory. The expansion joint is made from finger steel plate with accessories such as high strength bolt, anchor steel systems and drainage system,...
To ensure the long-life durability, VHF finger expansion joints are protected against corrosion by the following methods: two-component Epoxy coat, PU-based painting (Polyurethane), hot dip galvanization according to ASTM A123 standard and especially the Al – Mg spraying method (at the ratio of 95% Al and 5% Mg) which ensure the anti-corrosion durability of up to 100 years, proven by salt-spraying test in 6000 hours (8-hour dry-wet cycle repetition) according to ASTM B117 standard.