Browsing NTNU Open by Author "Kjellsen, Knut O."
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Alkali metal distribution in composite cement pastes and its relation to accelerated ASR tests
Hemstad, Petter; Zuschlag, Pamela; Kjellemyr, Petter; Lindgård, Jan; Kjellsen, Knut O.; Rønning, Terje; Justnes, Harald; Maciej, Zajac; Haha, Mohsen Ben; Weerdt, Klaartje de (Peer reviewed; Journal article, 2023)Accelerated testing of alkali silica reaction (ASR) in concrete at elevated temperatures of 38 and 60 °C has an unknown impact on the alkali metal distribution in the cement paste. This paper investigates how the alkali ... -
Cement paste chemistry and its relation to concrete durability
Hemstad, Petter (Doctoral theses at NTNU;2023:258, Doctoral thesis, 2023) -
The impact of curing temperatures on Portland composite cements – hydrate assemblage, porosity, and compressive strength
Zuschlag, Pamela (Doctoral theses at NTNU;2022:374, Doctoral thesis, 2022)Cement production stands for approx. 8% of the man-made CO2 emissions. One of the most common ways to reduce CO2 emissions in cement production is by replacing part of the clinker with supplementary cementitious materials ... -
Portland metakaolin cement containing dolomite or limestone – Similarities and differences in phase assemblage and compressive strength
Machner, Alisa; Zajac, Maciej; Ben Haha, Mohsen; Kjellsen, Knut O.; Geiker, Mette Rica; De Weerdt, Klaartje (Journal article; Peer reviewed, 2017)The scarceness of high-quality limestone obliges the cement industry to consider alternative supplementary cementitious materials (SCMs) for the production of blended cements. This study investigated the potential usage ...