Two EU-funded tests in VULCANO to assess the effects of concrete nature on its ablation by molten corium

Christophe Journeau, Lionel Ferry, Pascal Piluso, Jose Monerris, Michel Breton, Gerald Fritz, Tuomo Sevón

    Research output: Contribution to conferenceConference articleScientific

    Abstract

    In order to understand the effects of concrete properties on corium-concrete interaction, it has been chosen to perform new VULCANO experiments with concretes having a different composition from the classical silica-limestone concretes. Firstly, a concrete has been made using cement clinker (calcinated limestone) instead of limestone (calcium carbonate) in order to obtain a material forming a melt with the same composition as the melt from a previously-tested concrete with limestone rich aggregates, but in which the aggregates are not destroyed before melting. This was the first VULCANO test funded with the SARNET2 grant. It showed an anisotropic ablation, typical of the silica-rich concretes, proving that molten concrete composition was not the cause of the transition from isotropic to anisotropic ablation. Then, the ferro-siliceous sacrificial concrete used in Olkiluoto 3 (EPR) reactor pit has been studied within the PLINIUS FP6 Transnational Access project. This new concrete interacted with corium, following a similar experimental procedure. Here also, an anisotropic ablation has been observed.
    Original languageEnglish
    Publication statusPublished - 2010
    MoE publication typeNot Eligible
    Event4th European Review Meeting on Severe Accident Research, ERMSAR-2010 - Bologna, Italy
    Duration: 11 May 201012 May 2010
    Conference number: 4

    Conference

    Conference4th European Review Meeting on Severe Accident Research, ERMSAR-2010
    Abbreviated titleERMSAR-2010
    CountryItaly
    CityBologna
    Period11/05/1012/05/10

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