Browsing Norwegian Geotechnical Institute (NGI) Digital Archive by Author "Wærsted, Frøydis Meen"

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    • Container experiments yearly report 2022 

      Wærsted, Frøydis Meen; Hansen, Caroline Berge; Dublet-Adli, Gabrielle; Fjermestad, Halldis; Hagelia, Per (NGI-rapport;20200436-10-R, Research report, 2023-07-07)
      Container experiments investigating leaching from alum shale under different conditions were started autumn 2020 as a part of the Under Oslo project at NGI (SP13). Furthermore, leaching from alum shale mixed with different ...

    • Limited access to oxygen reduces the release of harmful trace elements from submerged alum shale debris 

      Wærsted, Frøydis Meen; Reinoso-Maset, Estela; Salbu, Brit; Skipperud, Lindis (Peer reviewed; Journal article, 2023)

    • Utfordringer med svarte leirskifere; mellomlagring og naturlige blandmasser 

      Wærsted, Frøydis Meen; Fjermestad, Halldis; Totland, Christian; Børresen, Marion; Slinde, Gøril Aasen; Hansen, Caroline Berge; Tønnessen, Elisabeth; Hagelia, Per; Erstad, Lars; Baardvik, Gunvor (Chapter, 2022)
      Det er planlagt flere store byggeprosjekt i Oslo-regionen de neste årene. Dette vil resultere i utgraving av potensielt syredannende svart leirskifer i volumer som er større enn kapasiteten til godkjente deponier. NGI har ...

    • WP1 - Container experiments - Yearly report 2021 

      Wærsted, Frøydis Meen; Hansen, Caroline Berge Hansen; Fjermestad, Halldis; Hagelia, Per (NGI-rapport;20200436-09-R, Research report, 2023-05-08)
      Container experiments investigating leaching from alum shale under different conditions were started autumn 2020 as a part of the Under Oslo project at NGI (SP13). Furthermore, leaching from alum shale mixed with different ...

    • WP1 - Temporary storage of black shales – a compilation of case studies, experiences and overall conclusions 

      Wærsted, Frøydis Meen; Slinde, Gøril Aasen; Børresen, Marion (NGI-rapport;20200436-03-R, Research report, 2023-01-09)
      As a part of the internal R&D project "Under Oslo" at NGI, several aspects of temporary storage of black shale has been investigated. Information from different experiments and cases of black shale storage from the ...