Blar i Institutt for konstruksjonsteknikk på forfatter "Geiker, Mette Rica"
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Frost Salt Scaling of Concrete
Wahlbom, David; Fridh, Katja; Feng-Chong, Teddy; Dangla, Patrick; Geiker, Mette Rica; Jacobsen, Stefan; Skocek, Jan; Huy Vu, Quoc (Journal article; Peer reviewed, 2017)The project will address the mechanism(s) of deterioration in frost salt scaling (FSS) including the potentially protective effect of entrained air voids and the performance of low-clinker blends. Frost deterioration of ... -
Impact of Accelerated Carbonation on Microstructure and Phase Assemblage
Belda Revert, Andres; De Weerdt, Klaartje; Hjorth Jakobsen, Ulla; Geiker, Mette Rica (Journal article; Peer reviewed, 2018)The paper summarizes preliminary results on characterization of the microstructure and phase assemblage of mortar and concrete samples containing Portland and Portland -fly ash cement carbonated at ... -
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 electrodialytic remediation of MSWI fly ash on hydration and mechanical properties of blends with Portland cement
Ebert, Benjamin A. R.; Geiker, Mette Rica; Kunther, Wolfgang; Kirkelund, Gunvor M. (Peer reviewed; Journal article, 2021)Municipal solid waste incineration (MSWI) residues such as fly ash and air pollution control (APC) residues may serve as new supplementary cementitious materials (SCM). These SCMs may, however, require a pre-treatment to ... -
Impact of production parameters on physiochemical characteristics of wood ash for possible utilisation in cement-based materials
Sigvardsen, Nina Marie; Kirkelund, Gunvor M.; Jensen, Pernille E.; Geiker, Mette Rica; Ottosen, Lisbeth M. (Journal article; Peer reviewed, 2019)Energy production is reorganised to mitigate the pressure on the global environment. This reorganisation leads to an increase in the production of wood ash (WA). Multivariate modelling was used to identify the link between ... -
Impact of sample crushing on porosity characterization of hardened cement pastes by low temperature calorimetry: Comparison of powder and cylinder samples
Wu, Min; Fridh, Katja; Johannesson, Björn; Geiker, Mette Rica (Journal article; Peer reviewed, 2018)Impact of sample crushing on porosity characterization of hardened cement pastes by low temperature calorimetry: Comparison of powder and cylinder samples -
Influence of cracks and spacers on chloride penetration and reinforcement corrosion in concrete
Strømme, Øyvind (Master thesis, 2017)This thesis studies the influence of cracks and spacers on chloride penetration and reinforcement corrosion in concrete. The study was conducted in connection with the Norwegian Public Road Authorities (NPRA) E39 project, ... -
Influence of Cracks on Chloride Ingress and Reinforcement Corrosion
Rygg, Andreas (Master thesis, 2017)Chloride induced reinforcement corrosion is a major durability problem in concrete constructions. It is consensus in literature that cracks facilitate chloride ingress, and may initiate early reinforcement corrosion. This ... -
Influence of Cracks on Chloride Ingress and Reinforcement Corrosion
Rygg, Andreas (Master thesis, 2017)Chloride induced reinforcement corrosion is a major durability problem in concrete constructions. It is consensus in literature that cracks facilitate chloride ingress, and may initiate early reinforcement corrosion. This ... -
Investigation of the products of the dolomite reaction in Portland cement pastes
Machner, Alisa; Zajac, Maciej; Ben Haha, Mohsen; Kjellsen, Knut Ose; Geiker, Mette Rica; De Weerdt, Klaartje (Chapter; Peer reviewed, 2017)The formation of potentially deleterious reaction products from the reaction of dolomite fines in Portland cement pastes was investigated. It was shown that the reaction of dolomite fines did not follow the commonly accepted ... -
Limit states for sustainable reinforced concrete structures
Geiker, Mette Rica; Michel, Alexander; Stang, Henrik; Lepech, Michael (Journal article; Peer reviewed, 2019)Probability-based limit state design is a hallmark of modern civil engineering practice. Code requirements to meet both ultimate limit states (ULS) and serviceability limit states (SLS) have vastly improved the safety and ... -
Limitations of the hydrotalcite formation in Portland composite cement pastes containing dolomite and metakaolin
Machner, Alisa; Zajac, Maciej; Ben Haha, Mohsen; Kjellsen, Knut Ose; Geiker, Mette Rica; De Weerdt, Klaartje (Journal article; Peer reviewed, 2018)This study focuses on the reaction of dolomite powder in combination with metakaolin in Portland composite cement pastes. We studied paste samples cured at 20 °C, 38 °C, and 60 °C for up to 1 year. In these systems, the ... -
Long-term Influence of Concrete Surface and Crack Orientation on Self-healing and Ingress in Cracks – Field Observations
Danner, Tobias; Geiker, Mette Rica (Journal article; Peer reviewed, 2018)This paper presents results from investigations on the long-term influence of concrete surface and crack orientation on ingress in cracks. Five reinforced concrete structures from Norway exposed to either de-icing salts ... -
Macrocell corrosion in carbonated Portland and Portland-fly ash concrete - Contribution and mechanism
Belda Revert, Andres; Hornbostel, Karla; De Weerdt, Klaartje; Geiker, Mette Rica (Journal article, 2019)The corrosion of reinforcement in carbonated concrete with high moisture state was measured with and without electrical connection to reinforcement in non-carbonated concrete. The impact of the fly ash content and the ... -
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 ... -
Microstructural changes and mass transport in cement-based materials: a modeling approach
Michel, Alexander; Marcos-Meson, Victor; Kunther, Wolfgang; Geiker, Mette Rica (Peer reviewed; Journal article, 2021)A generic modeling framework is presented to relate microstructural changes, i.e. changes in the pore volume distribution and phase assemblage, and mass transport in cement-based materials. The modeling framework accounts ... -
Mineralogical Sequence of Self-Healing Products in Cracked Marine Concrete
Danner, Tobias; Jakobsen, Ulla Hjorth; Geiker, Mette Rica (Journal article; Peer reviewed, 2019)Self-healing of cracked concrete beams after 25 years of marine exposure was investigated. The extent of self-healing and the chemical and mineralogical composition of the self-healing products were characterized, and ... -
Modified cracked membrane model for consistent crack width predictions of reinforced concrete structures subjected to in-plane loading
Tan, Jesus Reignard Medel; Hendriks, Max; Geiker, Mette Rica; Kanstad, Terje (Journal article; Peer reviewed, 2019)The modified cracked membrane model (MCMM) presented in this paper was formulated to facilitate a mechanical calculation model that predicts crack widths in reinforced concrete (RC) structures subjected to in-plane loading ... -
Nanorubber-modified cement system for oil and gas well cementing application
Jafariesfad, Narjes; Khalifeh, Mahmoud; Skalle, Pål; Geiker, Mette Rica (Journal article, 2017)Flexible cement systems with low shrinkage are more capable than the conventional cement systems to withstand the tensile stresses generated by fluctuation of temperature and pressure in oil and gas wells. In this work ...