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Browsing NTNU Open by Author "Shpak, Andrei"

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    • Betong med høyt flygeaskeinnhold: frostbestandighet og luftporestruktur 

      Hustad, Jørn (Master thesis, 2019)
      Produksjon av sement og betong medfører store CO2-utslipp. I de fleste land i verden foregår et intensivert forsknings- og utviklingsarbeid rettet mot mer miljøvennlige løsninger. Mange av disse løsningene er i tidlige ...
    • Concrete in arctic conditions WORKSHOP PROCEEDINGS FROM A NORDIC WORKSHOP Trondheim – Norway, 18–19 June 2019 

      Shpak, Andrei; Shamsutdinova, Guzel; Fosså, Kjell Tore; Jacobsen, Stefan (Book, 2019)
      PREFACE The Nordic Workshop “Concrete in arctic conditions” has been organized under the auspices of the ongoing Norwegian research project; Durable Advanced Concrete Structures (DaCS). The research project DaCS aims to ...
    • DACS Report 06: Requirements and recommendations for frost durable concrete. Test methods. Overview of national and international standards, codes, committees, representative projects. 

      Shpak, Andrei; Jacobsen, Stefan (Research report, 2019)
      The report gives an overview of requirements and recommendations to frost durable concrete in standards and specifications, available to the author from a limited selection of standardization and engineering organizations ...
    • Effect of AEA-SP dosage sequence on air content and air void structure in fresh and hardened fly ash mortar 

      Shpak, Andrei; Vimo, Ole Petter; Jacobsen, Stefan (Chapter; Conference object; Peer reviewed, 2017)
      Laboratory measurements show that varying the dosage sequence of air-entraining agent and copolymer in the mix (SP added before, after or together with AEA) greatly affects air entrainment in fresh and hardened fly ash ...
    • Effect of AEA-SP Dosage Sequence on Air Entrainment in FA Concrete 

      Shpak, Andrei; Jacobsen, Stefan (Journal article; Peer reviewed, 2019)
      Laboratory measurements show that varying the dosage sequence of air-entraining agent and co-polymer in the mix (SP added before, after or together with AEA) greatly affects air entrainment in fresh and hardened fly ash ...
    • Frost testing of HP/HVFA concrete for severe offshore conditions 

      Shpak, Andrei; Fosså, Kjell Tore; Jacobsen, Stefan (Chapter, 2019)
      In the Durable Advanced Concrete Solution (DACS) project lead by Kvaerner and supported by a group of Norwegian concrete industries and The Norwegian Research Council the production and documentation of frost durable ...
    • Preparation system, salt scaling, absorption and internal damage in the CEN/TS 12390-9 concrete frost test 

      Børsum, Ole Christian (Master thesis, 2017)
      Experiments show that the most promising materials to replace key point 2 and 3 in the CEN/TS 12390-9 standard is by using a combination of Sitko Elastic butyl tape and adhesives. The adhesives are "SikaFlex 11FC" and ...
    • Production and Documentation of Frost Durable High-Volume Fly Ash Concrete: air entrainment, cracking and scaling in performance testing 

      Shpak, Andrei (Doctoral theses at NTNU;2020:366, Doctoral thesis, 2020)
      Concrete with moderate replacement levels of fly ash (FA) has been used for decades and considered sustainable in harsh environments. If the replacement levels become high (FA/C > 40…50%), the range of properties from fresh ...
    • Shape and Size of Particles Scaled from Concrete Surfaces during Salt Frost Testing and Rapid Freeze/thaw in Water 

      Brun, Marte Beheim; Shpak, Andrei; Jacobsen, Stefan (Peer reviewed; Journal article, 2021)
      Thickness (T), Length (L), Width (W) and size distribution of scaled concrete particles in frost testing were measured. T (mm) increases with particle size surprisingly similarly for different concrete qualities and frost ...

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