Searched for: subject%3A%22rheology%22
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Chen, Y. (author), Zhang, Y. (author), Šavija, B. (author), Copuroglu, Oguzhan (author)
Formulation of quaternary blended system containing ordinary Portland cement or clinker, slag, limestone and calcined clay (LC2) appeared to be a viable approach to developing low-clinker cements without severely sacrificing mechanical performance at later ages. This paper investigates the effect of two material parameters, i.e., LC2-to-slag...
journal article 2023
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Saha, S. (author), Luckham, Paul F. (author), Garbin, V. (author)
Hypothesis: High-frequency interfacial rheology of complex interfaces remains challenging yet it is central to the performance of multiphase soft matter products. We propose to use ultrasound-driven bubble dynamics to probe the high-frequency rheology of a colloid monolayer used as model system with controlled interactions and simultaneous...
journal article 2023
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Li, Hongyan (author), Li, Z. (author), Qiu, Liangsheng (author), Dong, Sufen (author), Ouyang, Jian (author), Dong, Xufeng (author), Han, Baoguo (author)
This study aims to understand the effects and mechanisms of length, diameter, and functional group of carbon nanotubes (CNTs) on rheological behaviors of cementitious composites. The experimental results show that the addition of CNTs decreases the flow index and increases the critical shear rate of cementitious composites. CNTs with a sub...
journal article 2023
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Sun, Yubo (author), Miranda de Lima Junior, L.C. (author), Rossi, Laura (author), Jiao, Dengwu (author), Li, Z. (author), Ye, G. (author), De Schutter, Geert (author)
To better understand early stiffening of AAS pastes, distinctive microstructural features by varying the silicate modulus (Ms) have been visualized with in-situ microscopy. In addition, the activation reaction was monitored with multiple approaches, while solid and liquid phases in hydrating AAS were characterized separately. In silicate...
journal article 2023
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Chen, Y. (author), Liang, M. (author), Zhang, Y. (author), Li, Z. (author), Šavija, B. (author), Schlangen, E. (author), Copuroglu, Oguzhan (author)
Autogenous shrinkage may be a critical issue concerning the use of limestone-calcined clay-cement (LC3) in high-performance concrete and 3D printable cementitious materials, which have relatively low water to binder (W/B) ratio. Adding an internal curing agent, i.e., superabsorbent polymer (SAP), could be a viable solution in this context....
journal article 2023
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Chen, Y. (author), Zhang, Y. (author), He, S. (author), Liang, M. (author), Zhang, Yamei (author), Schlangen, E. (author), Copuroglu, Oguzhan (author)
Limestone-calcined clay-cement (LC3), as one of the most promising sustainable cements, has been under development over the past decade. However, many uncertainties remain regarding its rheological behaviors, such as the metakaolin content of calcined clay. This study aims to investigate the effect of increasing the content of fine-grained...
journal article 2023
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Sun, Beibei (author), Sun, Yubo (author), Ye, G. (author), De Schutter, Geert (author)
Although the application of blast furnace slag and fly ash-based alkali-activated concrete (BFS/FA-AAC) has both economic and environmental benefits, it is limited by the lack of a straightforward mix design method. In this paper, an experiment was conducted to investigate the effect of control factors, including the Na<sub>2</sub>O/binder...
journal article 2023
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Wei, P. (author), Uijttewaal, W.S.J. (author), Spanjers, H. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)
Gas-mixing is commonly applied in anaerobic digesters, yet the resulting flow and hydraulic mixing are difficult to evaluate because of limited full-scale experimental data and uncertainties in integrating sludge rheological data. This study used computational fluid dynamics (CFD) to assess the impact of treated sludge rheology on flow and...
journal article 2023
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Kempenaar, Gydo (author)
Uncertainty in ice sheet modelling affects centennial and longer time-scale projections of the Greenland Ice Sheet's (GrIS) sea level contribution. One source of this uncertainty is the interaction between the ice sheet’s evolution and the Earth’s deformation in response to changes in the applied surface loading as the ice sheet waxes and wanes....
master thesis 2022
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Nadorp, Tim (author)
Dense suspensions can be found in various industrial and natural processes. A relatively new technique uses the principle of additive manufacturing to produce products from a wide variety of materials by printing with dense suspensions. To reach a high print quality the suspension rheology must be understood very well. Current knowledge about...
master thesis 2022
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Shakeel, A. (author)
The nautical bottom (the level at which contact with a ship’s keel causes either damage or unacceptable effects on controllability and manoeuvrability of a ship) should be associated to a measurable physical characteristic. Bulk density is typically used as a criterion for nautical bottom by many ports worldwide. However, the rheological...
doctoral thesis 2022
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Ma, Sebastiaan (author)
The Port of Rotterdam experiences large amounts of siltation from the upstream rivers in its basins and canals every year. Furthermore, container vessels increase in size every decade and therefore require a larger navigational depth. These two factors cause the yearly amount of dredged material to increase. Currently, mainly trailing suction...
master thesis 2022
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de Klerk, Jan-Willem (author)
The nautical bottom is defined as the level where physical characteristics of the bottom reach a critical limit beyond which contact with a ship’s keel causes either damage or unacceptable effects on the controllability and manoeuvrability of ships. The nautical bottom is usually assessed using the density of the bottom fluid mud layer as a...
master thesis 2022
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Shakeel, A. (author), Ali, W. (author), Chassagne, C. (author), Kirichek, Alex (author)
Kaolin based suspensions have wide range of applications such as slurry wall, drilling fluids, adhesives, cosmetics, refractories and pharmaceuticals, due to their abundance in nature, low cost and non-swelling nature. On the other hand, the unique properties (i.e., biodegradability) of biopolymers make them suitable candidate for variety of...
journal article 2022
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Zhang, Y. (author), Liu, X. (author), Ren, S. (author), Jing, R. (author), Lin, P. (author), Apostolidis, P. (author), Erkens, S. (author), Wang, Xuancang (author), Scarpas, Athanasios (author)
Lignin, one of the most abundant natural polymers, has been extensively studied as an additive in bituminous binders. Even though the lignin improves the overall resistance against oxidative aging of bitumen, it could lead to high thermal cracking sensitivity. In this study, a bio-oil (i.e., rapeseed oil) is implemented in lignin-modified...
journal article 2022
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Shakeel, A. (author), Zander, F. (author), de Klerk, Jan‑Willem (author), Kirichek, Alex (author), Gebert, J. (author), Chassagne, C. (author)
Purpose<br/>The presence of organic matter in cohesive sediment results in the formation of clay-organic flocs, which eventually impart complex rheological behavior including shear-thinning, viscoelasticity, thixotropy and two-step yielding to mud. In this study, the influence of microbial degradation of sediment organic matter on the...
journal article 2022
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Zheng, Dongzhu (author), Bezuijen, Adam (author), Talmon, A.M. (author)
This paper presents an improvement on a previous model for predicting the Marsh funnel (MF) test that is used in slurry shield tunneling for evaluating the rheological properties of bentonite slurries. The improvement focuses on the prediction of the dynamic part for fluids with small MF times. The velocity profile of the Herschel-Bulkley...
journal article 2022
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Srinivasan, Sudharsan (author), van den Akker, H.E.A. (author), Shardt, Orest (author)
The understanding of the rheological behaviour of suspensions in aqueous electrolytes is necessary for the optimal design of hydraulic transport lines. In these applications, particle size is at least 10 micron, and the particle Reynolds number, Re<sub>p</sub>, is finite: O(10<sup>−1</sup>). Although there are some experimental and numerical...
journal article 2022
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Shakeel, A. (author), Chassagne, C. (author), Bornholdt, Jasper (author), Ohle, Nino (author), Kirichek, Alex (author)
The nautical bottom (i.e., the level at which contact with a ship’s keel causes either damage or unacceptable effects on controllability and manoeuvrability of a ship) should be associated to a measurable physical characteristic. Bulk density is typically used as a criterion for nautical bottom by many ports worldwide. However, the rheological...
journal article 2022
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Pisano, F. (author), Betto, D. (author), Della Vecchia, G. (author), Cremonesi, M. (author)
Submarine buried pipelines are often laid in trenches backfilled with loose sandy soil, which is intrinsically prone to liquefaction. When liquefaction is triggered, the soil tends to behave as a viscous fluid with vanishing shear strength and very limited ability to restrain structural displacement, for instance during the occurrence of...
journal article 2022
Searched for: subject%3A%22rheology%22
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