Core melt stabilization (COMESTA): HECLA Experiments on Melt-Concrete Interactions

Tuomo Sevon, Stefan Holmström, Jouko Virta, Tuomo Kinnunen

    Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

    Abstract

    The HECLA experiments investigate interactions between metallic melt and concrete. They involve pouring of 50 kg of stainless steel into a cylindrical concrete crucible. Three full-scale experiments have already been performed, one with ordinary siliceous concrete and two with hematite-containing concrete, similar to the sacrificial concrete in the EPR reactor pit. The ablation depths have been between 0 and 30 mm. Clear differences between the two concrete types have not been observed. Dramatic effects, e.g. explosive spalling, have not taken place.
    Original languageEnglish
    Title of host publicationSAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010
    Subtitle of host publicationInterim Report
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Pages295-303
    ISBN (Print)978-951-38-7266-3, 978-951-38-7267-0
    Publication statusPublished - 2009
    MoE publication typeNot Eligible

    Publication series

    SeriesVTT Tiedotteita - Research Notes
    Number2466
    ISSN1235-0605

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  • Cite this

    Sevon, T., Holmström, S., Virta, J., & Kinnunen, T. (2009). Core melt stabilization (COMESTA): HECLA Experiments on Melt-Concrete Interactions. In SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010: Interim Report (pp. 295-303). VTT Technical Research Centre of Finland. VTT Tiedotteita - Research Notes, No. 2466 http://www.vtt.fi/inf/pdf/tiedotteet/2009/T2466.pdf