Nikolas Ålgård Oberhardt

Publications

Bagheri, Mahsa; Lothenbach, Barbara; Lindgård, Jan; Haugen, Marit Kristin; Danner, Tobias; Pedersen, Bård. (2024) Changes in the cement paste due to pyrrhotite reaction during accelerated mortar bar testing.
Academic chapter/article/Conference paper
Lindgård, Jan; Pedersen, Bård; Oberhardt, Nikolas; Wigum, Børge Johannes; Ullnæss, Inger Lise; Aasly, Kurt. (2024) Norwegian research project on pyrrhotite in concrete aggregates – aim and status.
Academic chapter/article/Conference paper
Weerdt, Klaartje de; Bagheri, Mahsa; Lindgård, Jan; Lindstad, Hallvard; Rodrigues, A.; Duchesne, J.. (2024) Changes in cement paste during accelerated mortar bar testing for pyrrhotite containing aggregate. Cement and Concrete Research
Academic article

Lindstad, Hallvard; Lindgård, Jan; Pedersen, Bård Magne; Wigum, Børge Johannes; Aasly, Kurt; Ullnæss, Inger Lise. (2022) Pyrrhotite in concrete aggregate. Introduction to mechanism, damage potential and ongoing research.
Academic chapter/article/Conference paper

Aasly, Kurt; Oberhardt, Nikolas; Pedersen, Bård Magne; Wigum, Børge Johannes; Hagelia, Per. (2020) Et lite mineralkorn kan skape store problemer i betong!.
Feature article

Tan, Pingchuan; Oberhardt, Nikolas; Dypvik, Henning; Riber, Lars; Ferrell, Ray E. Jr. (2017) Weathering profiles and clay mineralogical developments, Bornholm, Denmark. Marine and Petroleum Geology
Academic article
Riber, Lars; Dypvik, Henning; Sørlie, Ronald; Naqvi, Syed Asmar Aal-E-Muhammed; Stangvik, Kristian Bendiksen; Oberhardt, Nikolas. (2017) Comparison of deeply buried paleoregolith profiles, Norwegian North Sea, with outcrops from southern Sweden and Georgia, USA — Implications for petroleum exploration. Palaeogeography, Palaeoclimatology, Palaeoecology
Academic article

Oberhardt, Nikolas; Lode, Stefanie; Lindgård, Jan; Aasly, Kurt. (2025) Classification and quantification of minor iron-sulfide concentrations in concrete aggregate using automated mineralogy. Materials and Structures
Academic article
Weerdt, Klaartje de; Bagheri, Mahsa; Lindgård, Jan; Lindstad, Hallvard; Rodrigues, A.; Duchesne, J.. (2024) Changes in cement paste during accelerated mortar bar testing for pyrrhotite containing aggregate. Cement and Concrete Research
Academic article
Aasly, Kurt; Oberhardt, Nikolas; Pedersen, Bård Magne; Wigum, Børge Johannes; Hagelia, Per. (2020) Et lite mineralkorn kan skape store problemer i betong!.
Feature article
Tan, Pingchuan; Oberhardt, Nikolas; Dypvik, Henning; Riber, Lars; Ferrell, Ray E. Jr. (2017) Weathering profiles and clay mineralogical developments, Bornholm, Denmark. Marine and Petroleum Geology
Academic article
Riber, Lars; Dypvik, Henning; Sørlie, Ronald; Naqvi, Syed Asmar Aal-E-Muhammed; Stangvik, Kristian Bendiksen; Oberhardt, Nikolas. (2017) Comparison of deeply buried paleoregolith profiles, Norwegian North Sea, with outcrops from southern Sweden and Georgia, USA — Implications for petroleum exploration. Palaeogeography, Palaeoclimatology, Palaeoecology
Academic article

Bagheri, Mahsa; Lothenbach, Barbara; Lindgård, Jan; Haugen, Marit Kristin; Danner, Tobias; Pedersen, Bård. (2024) Changes in the cement paste due to pyrrhotite reaction during accelerated mortar bar testing.
Academic chapter/article/Conference paper
Lindgård, Jan; Pedersen, Bård; Oberhardt, Nikolas; Wigum, Børge Johannes; Ullnæss, Inger Lise; Aasly, Kurt. (2024) Norwegian research project on pyrrhotite in concrete aggregates – aim and status.
Academic chapter/article/Conference paper
Lindstad, Hallvard; Lindgård, Jan; Pedersen, Bård Magne; Wigum, Børge Johannes; Aasly, Kurt; Ullnæss, Inger Lise. (2022) Pyrrhotite in concrete aggregate. Introduction to mechanism, damage potential and ongoing research.
Academic chapter/article/Conference paper

Academic lecture

Oberhardt, Nikolas; Lindgård, Jan; Aasly, Kurt. (2024) Comparative evaluation of CEN standard test methods for the determination of the total sulfur content in concrete aggregates. First International Conference on Iron. Sulfide Reactions in Concrete. ICISR 2024 , Quebec City, Université Laval Campus 2024-05-14 - 2024-05-17
Academic lecture

Lindgård, Jan; Pedersen, Bård; Oberhardt, Nikolas; Wigum, Børge Johannes; Ullnæss, Inger Lise; Aasly, Kurt. (2024) Norwegian research project on pyrrhotite in concrete aggregates – aim and status. First International Conference on Iron. Sulfide Reactions in Concrete. ICISR 2024 , Quebec City, Université Laval Campus 2024-05-14 - 2024-05-17
Academic lecture

Bagheri, Mahsa; Lothenbach, Barbara; Lindgård, Jan; Haugen, Marit Kristin; Danner, Tobias; Pedersen, Bård. (2024) Changes in the cement paste due to pyrrhotite reaction during accelerated mortar bar testing. First International Conference on Iron. Sulfide Reactions in Concrete. ICISR 2024 , Quebec City, Université Laval Campus 2024-05-14 - 2024-05-17