Blar i NTNU Open på forfatter "Zivkovic, Jelena"

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    • Behaviour and Capacity of Lightweight Aggregate Concrete Beams with and without Shear Reinforcement 

      Zivkovic, Jelena; Øverli, Jan Arve (Journal article; Peer reviewed, 2017)
      The main disadvantages of lightweight aggregate compared with normal weight concrete are its brittleness at the material level in compression and uncontrolled crack propagation. This experimental investigation consists of ...

    • Brittleness of High-Strength Lightweight Aggregate Concrete 

      Zivkovic, Jelena; Lukovic, M.; Øverli, Jan Arve; Hordijk, D. A. (Chapter, 2018)
      Modern society and infrastructure are facing an increased demand for fast construction. A number of viaducts are aged and will need to be replaced in near future. When considering this replacement task, lightweight, slender ...

    • Confinement in bending of high-strength lightweight aggregate concrete beams 

      Zivkovic, Jelena; Øverli, Jan Arve (Journal article; Peer reviewed, 2022)
      The use of lightweight aggregate concrete (LWAC) is limited as a mainstream construction material in structural applications due to more brittle post-peak material behavior and uncontrolled crack propagation compared to ...

    • Ductility and brittleness of lightweight aggregate concrete structures 

      Zivkovic, Jelena (Doctoral theses at NTNU;2021:16, Doctoral thesis, 2021)
      Lightweight aggregate concrete (LWAC) has been used in construction since ancient Greek and Roman times, for more than two thousand years. With its low density, it was mainly used to reduce the weight of the structures. ...

    • Failure of Lightweight Aggregate Concrete in Compression under Stress Gradients 

      Zivkovic, Jelena; Øverli, Jan Arve (Journal article; Peer reviewed, 2019)
      The objective of this experiment is to investigate the behaviour of lightweight aggregate concrete (LWAC) under compression and with stress gradients. Experimental program contained three sets of LWAC which were used for ...

    • Trykkbrudd i høyfast lettbetong med tøyningsgradient 

      Hammer, Aleksander; Lauvsland, Håvard (Master thesis, 2018)
      Tidligere forskning under DACS-prosjektet har konkludert med at høyfast lettbetong med Stalite som tilslag, har vist mer duktil oppførsel enn forventet [1]. Det har derfor blitt pekt på et behov for videre forskning på ...

    • Ultimate compressive strain in lightweight aggregate concrete beams 

      Zivkovic, Jelena; Øverli, Jan Arve (Chapter, 2018)
      The major concern when using lightweight aggregate concrete (LWAC) in structural applications compared to normal weight concrete (NWC) is the more brittle post-peak behaviour and reduced ultimate strain, especially in ...