Browsing Institutt for konstruksjonsteknikk by Journals "Materials and Structures"

Now showing items 1-15 of 15

    • Chloride binding in concrete: recent investigations and recognised knowledge gaps: RILEM Robert L’Hermite Medal Paper 2021 

      De Weerdt, Klaartje (Journal article; Peer reviewed, 2021)
      A theoretical understanding of chloride binding is urgently needed if we are to use the new low-CO2 composite cements in reinforced concrete structures exposed to chloride-loaded environments. The empirical models and ...

    • Effect of silica fume, steel fiber and ITZ on the strength and fracture behavior of mortar 

      wang, xiao hui; Jacobsen, Stefan; Lee, Siaw Foon; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2010)
      Two sets of parameters known to affect the quality and thickness of the interfacial transition zone (ITZ), i.e. water/binder ratio and content of silica fume were varied in a series of mortars without and with steel fiber. ...

    • Impact of cracks on distribution of chloride-induced reinforcement corrosion 

      Robuschi, Samanta; Ivanov, Oskar Larsson; Geiker, Mette Rica; Fernandez, Ignasi; Lundgren, Karin (Peer reviewed; Journal article, 2023)
      Surface crack width is regulated in codes to limit corrosion of reinforcement bars in concrete. However, the influence of surface crack width on corrosion damages is not directly inferable from previous research.In this ...

    • Impact of leaching on chloride ingress profiles in concrete 

      Machner, Alisa Lydia; Bjørndal, Marie Helene; Šajna, Aljoša; Mikanovic, Nikola; De Weerdt, Klaartje (Peer reviewed; Journal article, 2022)
      To investigate the effect of leaching on chloride ingress profiles in concrete and mortar, we exposed concrete and mortar specimens for 90 and 180 days to two different exposure solutions: 3% NaCl, and 3% NaCl with KOH ...

    • The influence of calcium sulfate content on the hydration of belite-calcium sulfoaluminate cements with different clinker phase compositions 

      Mrak, Maruša; Winnefeld, Frank; Lothenbach, Barbara; Dolenec, Sabina (Peer reviewed; Journal article, 2021)
      The influence of different amounts of gypsum on the hydration of a belite-rich and a ye'elimite-rich belite-calcium sulfoaluminate clinker (BCSA) was investigated. The hydration kinetics, phase assemblages and compressive ...

    • A long-term study on structural changes in calcium aluminate silicate hydrates 

      Barzgar, Sonya; Yan, Yiru; Tarik, Mohamed; Skibsted, Jorgen; Ludwig, Christian; Lothenbach, Barbara (Peer reviewed; Journal article, 2022)
      Production of blended cements in which Portland cement is combined with supplementary cementitious materials (SCM) is an effective strategy for reducing the CO2 emissions during cement manufacturing and achieving sustainable ...

    • A long-term study on structural changes in calcium aluminate silicate hydrates 

      Barzgar, Sonya; Yan, Yiru; Tarik, Mohamed; Skibsted, Jorgen; Ludwig, Christian; Lothenbach, Barbara (Peer reviewed; Journal article, 2022)
      Production of blended cements in which Portland cement is combined with supplementary cementitious materials (SCM) is an effective strategy for reducing the CO2 emissions during cement manufacturing and achieving sustainable ...

    • Measurement of the electrical resistivity of cement-based materials using post-embedded probes: effect of contact material 

      Messina, Marco; Belda Revert, Andres; Gastaldi, Matteo; Geiker, Mette Rica (Journal article; Peer reviewed, 2023)
      The measurement of the electrical resistivity of cement-based materials, e.g., concrete, is used for quality control and durability assessment. In an existing structure, the electrical resistivity of the concrete can be ...

    • Methods for characterising the steel–concrete interface to enhance understanding of reinforcement corrosion: a critical review by RILEM TC 262-SCI 

      Wong, Hong; Angst, Ueli M; Geiker, Mette Rica; Isgor, Burkan; Elsener, Bernhard; Michel, Alexander; Alonso, Maria Cruz; Correia, Maria Joao; Pacheco, Jose; Zhao, Yuxi; Criado, Maria; Raupach, Michael; Sørensen, Henrik; Francois, Raoul; Mundra, Shishir; Rasol, Mezgeen; Polder, Rob (Journal article; Peer reviewed, 2022)
      The steel–concrete interface (SCI) is a complex, multi-phase and multi-scale system. It is widely known to influence the performance and long-term durability of concrete structures. However, a fundamental understanding of ...

    • Reactivity tests for supplementary cementitious materials: RILEM TC 267-TRM phase 1 

      Li, Xuerun; Snellings, Ruben; Antoni, Mathieu; Alderete, Natalia Mariel; Ben Haha, Mohsen; Bishnoi, Shashank; Cizer, Özlem; Cyr, Martin; De Weerdt, Klaartje; Dhandapani, Yuvaraj; Duchesne, Josée; Haufe, Johannes; Hooton, Doug; Juenger, Maria; Kamali-Bernard, Siham; Kramar, Sabina; Marroccoli, Milena; Joseph, Aneeta Mary; Parashar, Anuj; Patapy, Cedric; Provis, John L.; Sabio, Sergio; Santhanam, Manu; Steger, Laurent; Sui, Tongbo; Telesca, Antonio; Vollpracht, Anya; Vargas, Felipe; Walkley, Brant; Winnefeld, Frank; Ye, Guang; Zajac, Maciej; Zhang, Shizhe; Scrivener, Karen L. (Journal article; Peer reviewed, 2018)
      A primary aim of RILEM TC 267-TRM: “Tests for Reactivity of Supplementary Cementitious Materials (SCMs)” is to compare and evaluate the performance of conventional and novel SCM reactivity test methods across a wide range ...

    • Recommendations of RILEM TC 287-CCS: thermo-chemo-mechanical modelling of massive concrete structures towards cracking risk assessment 

      Azenha, Miguel; Kanavaris, Fragkoulis; Schlicke, Dirk; Jędrzejewska, Agnieszka; Benboudjema, Farid; Honorio, Tulio; Šmilauer, Vít; Serra, Carlos; Forth, John; Riding, Kyle; Khadka, Binod; Sousa, Carlos; Briffaut, Matthieu; Lacarrière, Laurie; Koenders, Eduardus; Kanstad, Terje; Klausen, Anja Birgitta Estensen; Torrenti, Jean-Michel; Fairbairn, Eduardo M. R. (Peer reviewed; Journal article, 2021)
      These recommendations have been prepared by the corresponding working group within RILEM TC 287-CCS “Early-age and long-term crack width analysis in RC structures”, following work by the previously ceased RILEM TC 254-CMS ...

    • The square root method for chloride ingress prediction - Applicability and limitations 

      Fjendbo, Simon; Sørensen, Henrik E.; De Weerdt, Klaartje; Geiker, Mette Rica (Peer reviewed; Journal article, 2021)
      A recent observation showed a square root time dependency of the ingress depth of a fixed (reference) chloride concentration of 0.05% chloride by mass of concrete for submerged exposure in Kattegat and the Baltic Sea. The ...

    • Structural behaviour of layered beams with fibre-reinforced LWAC and normal density concrete 

      Nes, Linn Grepstad; Øverli, Jan Arve (Journal article; Peer reviewed, 2016)
      The hybrid concrete structures investigated in this project were beams composed of two layers of different types of concrete. Normal density concrete (NC) was used in the top layer combined with a layer of fibre-reinforced ...

    • The effect of realistic curing temperature on the strength and E-modulus of concrete 

      Klausen, Anja Birgitta Estensen; Kanstad, Terje; Bjøntegaard, Øyvind; Sellevold, Erik Johan (Journal article; Peer reviewed, 2018)
      The strength and E-modulus of concrete are decisive parameters when it comes to ultimate limit state design, serviceability limit state design, and early age crack assessment. The properties of concrete are generally ...

    • The effect of the steel-concrete interface on chlorideinduced corrosion initiation in concrete: a critical review by RILEM TC 262-SCI 

      Angst, Ueli M; Geiker, Mette Rica; Alonso, Maria Cruz; Polder, Rob; Isgor, Burkan; Elsener, Bernhard; Wong, Hong; Michel, Alexander; Hornbostel, Karla; Gehlen, Christoph; Francois, Raoul; Sanchez, Mercedes; Criado, Maria; Sørensen, Henrik; Hansson, Carolyn M; Pillai, Radhakrishna; Mundra, Shishir; Gulikers, Joost; Raupach, Michael; Pacheco, José F.; Sagues, Alberto (Journal article; Peer reviewed, 2019)
      The steel–concrete interface (SCI) is known to influence corrosion of steel in concrete. However, due to the numerous factors affecting the SCI—including steel properties, concrete properties, execution, and exposure ...