Blar i Publikasjoner fra CRIStin på forfatter "Gebremariam, Kidane Fanta"
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Cement properties characterization from a section retrieved from an oil production well after 33 years of downhole exposure
Beltran Jimenez, Katherine; Gardner, Dave; Kragset, Steinar; Gebremariam, Kidane Fanta; Reales, Oscar A. M.; Minde, Mona Wetrhus; Lourenco de Souza, Marcelo I.; Aasen, Jan Aage; Skadsem, Hans Joakim; Delabroy, Laurent (Peer reviewed; Journal article, 2021)A unique data set has been constructed based on the study of class G cement recovered from an oil well on the Norwegian continental shelf. The cement was placed between two casing sections and submitted to downhole conditions ... -
Challenging an old theory – Portable X-ray fluorescence(pXRF) analyses of greenstone adzes in Rogaland, southwestern Norway
Nyland, Astrid Johanne; Gebremariam, Kidane Fanta; With, Ruben (Chapter, 2022)The first large scale regional provenance analysis of greenstone and diabase adzes in western Norway was undertaken forty years ago. The study identified two social territories, which have been central in Norwegian archaeology ... -
Engineering properties and microstructure of a sustainable roof tile manufactured with waste rice husk ash and ceramic sludge addition
Subashi De Silva, G. H. M. J.; Aagani, T.H.F; Gebremariam, Kidane Fanta; Samarakoon, Mudiyansele Samindi Manjula K (Peer reviewed; Journal article, 2022)Clay replacement with waste rice husk ash (RHA) and ceramic sludge (CS), helps to reduce the consumption of natural clay and solves the ecological issues created by waste disposal. In this study, properties of waste RHA ... -
Synthesis and characterization of fly ash and slag based geopolymer concrete
Kallesten, Børge; Kakay, Samdar; Gebremariam, Kidane Fanta (Peer reviewed; Journal article, 2019)This paper presents the formulation and characterization of composite fly ash and slag based geopolymer concrete. Potassium hydroxide (KOH) and potassium silicate (K2SiO3) liquid alkaline activators were used in the ...