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Bestämning av korrosionsskyddsförmågan för olika reparationsbruk vid partiella reparationer

| 2026:1186 | Bror Sederholm, Johan Ahlström, Jan Trägårdh
This report summarizes the results of an extensive research and development project carried out within the Swedish National Road Administration BBT program and Energiforsk, Program - Nuclear Power Concrete Technology with the aim of evaluating the corrosion protection properties of different repair mortars in partial concrete repairs.
2026-1186

The background is a clear industry need: both the Swedish Transport Administration, the Swedish National Road Administration and the nuclear power industry experience recurring local concrete damage caused by reinforcement corrosion, especially in environments with chloride exposure such as bridges, tunnels, quay structures and cooling water channels. Insufficient or incorrectly performed partial repairs have been shown to lead to rapid recurring damage, as, for example, previous repairs on the Öland Bridge have clearly shown.

Publications and reports

Here you will find reports and fact sheets from the program.

    • Report

    Bestämning av korrosionsskyddsförmågan för olika reparationsbruk vid partiella reparationer

    This report summarizes the results of an extensive research and development project carried out within the Swedish National Road Administration BBT program and Energiforsk, Program - Nuclear Power Concrete Technology with the aim of evaluating the corrosion protection properties of different repair mortars in partial concrete repairs.

    |2026:1186Bror Sederholm, Johan Ahlström, Jan Trägårdh
    2026-1186
    • Report

    Gap formation between steel liner and cylinder wall in reactor containment buildings

    The reactor containment building is the most important safety barrier in a nuclear power plant. It is a cylindrical, prestressed concrete structure with an embedded steel liner on the inner face of the containment wall, designed to maintain integrity in the event of an internal accident.

    |2026:1181Nils Janestad, Manouchehr Hassanzadeh, Camilo Rito Pi and Elin Torén Johansson
    Bild Gap formation between steel liner and cylinder wall in reactor containment buildings
    • Report

    Methods for detection of rebar in nuclear concrete structures

    This project has reviewed non-destructive methods for detecting reinforcement in concrete structures and clarified which tasks can be performed by technically skilled in- house personnel and when specialist support is required.

    |2026:1182Magnus Nilson
    Bild Methods for detection of rebar in nuclear concrete structures
    • Report

    Deformationer och töjningar resulterande av håltagning i reaktorinneslutning på Ringhals 2

    Structural modifications to nuclear power plant containments require careful assessment to maintain safety margins. Changes can influence stresses and deformations, making reliable measurement and interpretation essential for safe operation and long-term integrity.

    |2026:1179Manouchehr Hassanzadeh, Sweco
    2026-1179