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DOI: 10.15862/09SATS421 (https://doi.org/10.15862/09SATS421)
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Parfenov A.A. , Lazareva T.L. Technological peculiarities of orthotropic bridge deck surface preparation for protective-adhesive layer laying. Russian Journal of Transport Engineering. 2021; 8(4). Available at: https://t-s.today/PDF/09SATS421.pdf (in Russian). DOI: 10.15862/09SATS421
Technological peculiarities of orthotropic bridge deck surface preparation for protective-adhesive layer laying
Aleksey A. Parfenov, Tatyana L. Lazareva
Pacific National University, Khabarovsk, Russia
Corresponding author: Tatyana L. Lazareva, e-mail: 000192@pnu.edu.ru
Abstract. The article presents the main results of technology developing for continuous span orthotropic bridge deck surface preparation for protective-adhesive layer laying of the Amur bridge near the Khabarovsk.
The pavement base on continuous steel spans is made of a metal plate with orthotropic properties, which is under a vehicular load distributed taking into account the pavement thickness. The vehicular load is transferred through the orthotropic deck to the superstructures’ truss members elements. Orthotropic bridge deck surface preparation is essential. This has a direct impact on the slab surface protection reliability from corrosion and the road structure durability as a whole, which is achieved through its reliable adhesion to the metal plate surface.
The research object is the technological peculiarities of the pavement base on continuous steel spans preparation of the vehicular bridge orthotropic bridge deck. The authors present the determination results of the grain sand composition for abrasive slab cleaning, and the technological parameters of using a sandblasting machine. Measurement data of the dewpoint temperature formation on the spans of a metal orthotropic deck are given, which makes it possible to give recommendations on preventing the condensate formation on the slab surface that is being cleaned.
The experimental study results also made it possible to give recommendations regarding the maximum acceptable temperature of impact on the anti-corrosion protection of the lower orthotropic deck surface, which was +120оC.
The obtained results were used to prepare a technical report for the State Company «Khabarovskavtodor» on research work on the construction of road pavement on the upper deck of the Amur bridge.
Keywords: orthotropic deck; metal superstructures; road bridge passage; sandblasting; pavement base; protective-adhesive layer; anti-corrosion protection
This work is licensed under a Creative Commons Attribution 4.0 License.
ISSN 2413-9807 (Online)
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