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Instrumentation and Modelling of a Reactor Containment Building

| 2018:526 | Tobias Gasch, Lamis Ahmed, Richard Malm
The most important safety barrier in a nuclear power plant is the reactor containment, a post-tensioned concrete structure enclosing the reactor.
bild 2018-526.jpg

The pre-stressing tendons prevent cracking of the concrete in case of a reactor accident, why the tension in the tendons is crucial to the integrity of the reactor containment. The tendon forces decrease over time, so to ensure the integrity of the reactor containment, it is important to monitor the tendon forces.

This report suggests an instrumentation system of the reactor containment for the Finnish nuclear power plant Olkiluoto 2, for measuring the global and local deformations of the structure, moisture and temperature. The system could be used for continuous long-term measurements and during the periodic pressure tests.

Rapporter och publikationer

Här listas rapporter och resultatblad från programmet.

    • Rapport

    Methods for Locating Pool Liner Leakage at Nuclear Power Plants

    This report evaluates practical methods for localizing leakage-relevant defects in thin stainless-steel pool liners in nuclear facilities, with particular emphasis on inspection under water.

    |2026:1156Markus Nilsson, Lund university
    Pool Liner Leakage at Nuclear Power Plants
    • Rapport

    Determination of stresses in grouted strands of a reactor containment by a destructive test method

    The aim of this study is to analyze prestressed bonded tendons obtained through the decommissioning of Barsebäck nuclear power plant, to better understand the factors that influence their performance.

    |2025:1130Peter Lundqvist and Manouchehr Hassanzadeh, Sweco
    2025:1130 Rapportbild.png
    • Rapport

    Träinducerad korrosion på ingjuten tätplåt

    Projektet har utfört labbstudier med syfte att närmare undersöka de fenomen som sker vid initiering av en aktiv/passiv-cell inducerad av en ingjuten träbit på tätplåt.

    |2025:1123Jonas Engblom, Bertil Sandberg, Johan Ahlström
    Bild till webben 2025-1123
    • Rapport

    Shear Force Capacity of Existig Concrete Slabs, 2025:1102

    Shear force capacity in concrete slabs is crucial for structural integrity, especially in nuclear power plants where safety and reliability are paramount. In several cases low or sometimes insufficient shear force capacities have been observed in structural analyses of existing concrete slabs using modern codes. Understanding shear force capacity and how it has been treated in earlier codes helps ensure durability and safety, preventing structural failures.

    |2025:1102Lamis Ahmed
    2025 1102 Bild Webben (1)