Blar i NTNU Open på forfatter "Mørtsell, Ernst"
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Analysing limitations of the FlowCyl as a one-point viscometer test for cement paste
Cepuritis, Rolands; Skare, Elisabeth Leite; Ramenskiy, Evgeny; Mørtsell, Ernst; Smeplass, Sverre; Li, Shizhao; Jacobsen, Stefan; Spangenberg, Jon (Journal article; Peer reviewed, 2019)The FlowCyl is a simple flow viscometer – a modification of the Marsh Cone test apparatus – developed to quantify the flow behaviour of cement pastes. The FlowCyl gives a one-parameter characterisation of rheology called ... -
Application of a New Empirical Model for Rheology Prediction of Cement Pastes Modified with Filler from Manufactured Sand
Skare, Elisabeth Leite; Cepuritis, Rolands; Mørtsell, Ernst; Smeplass, S.; Spangenberg, Jon; Jacobsen, Stefan (Journal article; Peer reviewed, 2021)There is a need for simple but precise prediction models for proportioning concrete with manufactured sand, for use in ready-mix concrete production. For the last two decades, the particle-matrix model has been used in ... -
FlowCyl: one-parameter cement paste rheology test developed at NTNU, Norway
Cepuritis, Rolands; Jacobsen, Stefan; Skare, Elisabeth Leite; Spangenberg, Jon; Smeplass, Sverre; Mørtsell, Ernst (Journal article, 2019)The FlowCyl is a simple flow viscometer – a modification of the Marsh Cone test apparatus developed to characterize cement pastes and grouts. The FlowCyl gives a one-parameter characterisation of rheology called the flow ... -
Influence of crushed aggregate fines with micro-proportioned particle size distributions on rheology of cement paste
Cepuritis, Rolands; Jacobsen, Stefan; Smeplass, Sverre; Mørtsell, Ernst; Wigum, Børge J.; Ng, Serina (Journal article; Peer reviewed, 2017)This paper presents a study on how crushed concrete aggregate fines affect rheological properties of cement paste. The fines (≤250 μm) were produced by high-speed vertical shaft impact (VSI) crushing of rock types from 10 ... -
Predictive strength of ready-mixed concrete: Exemplified using data from the Norwegian market
Engen, Morten; Hendriks, Max; Kohler, Jochen; Øverli, Jan Arve; Åldstedt, Erik; Mørtsell, Ernst; Sæter, Øystein; Vigre, R (Journal article; Peer reviewed, 2018)A hierarchical model for the variability of material properties in ready‐mixed concrete is formulated. The model distinguishes between variation on the batch, recipe, plant, producer, durability class, strength class, and ...