Katja Ohenoja

Katja Ohenoja


Senior research fellow


I am senior researher at Fibre and Particle Engineering research group. I did my doctoral thesis about nanogrinding of industrial minerals (2014). Since then I have worked in the field of circular economy with different industrial wastes and side streams, like fly ashes and slags. I am targeting towards effective utilization of wastes and lower CO2 emissions.

Research interests

  • Utilisation of industrial sidestreams
  • Sustainable cementitious materials
  • Mechanical treatments
  • Nanoparticles
  • Carbonation

Selected publications

  • Adesanya, Elijah; Ohenoja, Katja; Yliniemi, Juho; Illikainen, Mirja (2019) Mechanical transformation of phyllite mineralogy toward its use as alkali-activated binder precursor. - Minerals engineering 145, 106093 . [Original] [Self-archived]
  • Kiventerä, Jenni; Piekkari, Katri; Isteri, Visa; Ohenoja, Katja; Tanskanen, Pekka; Illikainen, Mirja (2019) Solidification/stabilization of gold mine tailings using calcium sulfoaluminate-belite cement. - Journal of cleaner production 239, 118008 . [Original]
  • Ohenoja, Katja; Wigren, Valter; Österbacka, Jan; Illikainen, Mirja (2019) Applicability of Fly Ash from Fluidized Bed Combustion of Peat, Wood, or Wastes to Concrete. - Waste and biomass valorization first online, first online . [Original]
  • Rissanen, Jouni; Ohenoja, Katja; Kinnunen, Päivö; Illikainen, Mirja (2017) Partial Replacement of Portland-Composite Cement by Fluidized Bed Combustion Fly Ash. - Journal of materials in civil engineering 29 (8), 04017061 . [Original]
  • Ohenoja, Katja; Tanskanen, Pekka; Wigren, Valter; Kinnunen, Päivö; Körkkö, Mika; Peltosaari, Olli; Österbacka, Jan; Illikainen, Mirja (2016) Self-hardening of fly ashes from a bubbling fluidized bed combustion of peat, forest industry residuals, and wastes. - Fuel 165 (1), 440-446 . [Original]
  • Ohenoja, Katja; Tanskanen, Pekka; Peltosaari, Olli; Wigren, Valter; Österbacka, Jan; Illikainen, Mirja (2016) Effect of particle size distribution on the self-hardening property of biomass-peat fly ash from a bubbling fluidized bed combustion. - Fuel processing technology 148, 60-66 . [Original]
  • Ohenoja, Katja; Breitung-Faes, Sandra; Kinnunen, Paivö; Illikainen, Mirja; Saari, Juha; Kwade, Arno; Niinimäki, Jouko (2014) Ultrafine Grinding of Limestone with Sodium Polyacrylates as Additives in Ordinary Portland Cement Mortar. - Chemical Engineering & Technology 37 (5; SI), 787-794
  • Ohenoja, Katja; Illikainen, Mirja; Niinimäki, Jouko (2013) Effect of operational parameters and stress energies on the particle size distribution of TiO2 pigment in stirred media milling. - Powder Technology 234, 91-96

Research visits

  • Technical University of Braunschweig, Germany

    Supervisor: Prof. Dr.-Ing. Arno Kwade