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Wang, H. (author), Liu, X. (author), Apostolidis, P. (author), Wang, Di (author), Leng, Zhen (author), Lu, Guoyang (author), Erkens, S. (author), Scarpas, Athanasios (author)Rubberized asphaltic materials have been frequently combined with warm-mix asphalt technologies to tackle the issues of high energy consumptions and emissions during construction. Effective and accurate characterization of binder properties is conducive to the improvement of long-term pavement performance. The current study aims to quantify...journal article 2021
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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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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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Carer, Chloé (author), Driever, Leonhard Xaver (author), Köbben, Stein (author), McKenzie, Max (author), Rhenman, Fredrik (author), Van de Sype, Onno (author), van der Toorn, Jesse (author), van Wezel, Casper (author), Veiga, Constança Miranda de Andrade (author), Vinarskis, Aleksandrs (author), Jyoti, B.V.S. (author)This research investigated how the variation of temperature and shear rate affects the viscosity of ethanol gel propellants that use methyl cellulose as gellant and, in parts, use boron as energetic additive. Using a rotational viscometer in a cone-and-plate configuration, propellant viscosity data was recorded across a range of temperatures...journal article 2021
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Shakeel, A. (author), Kirichek, Alex (author), Chassagne, C. (author)Kaolinite suspensions are known to have quite fast settling behaviour and Newtonian character, particularly at low concentrations, due to the non-swelling nature of their constitutive particles. On the other hand, bentonite is known for its swelling and interacting nature, which leads to the formation of a network structure, even at low...journal article 2021
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Guo, Z. (author), Qiu, Jingping (author), Kirichek, Alex (author), Zhou, Hao (author), Liu, C. (author), Yang, Lei (author)The increasing amount of solid waste, e.g., waste tyres from car industry and tailings from mine operations, causes substantial environmental and societal issues. The recycled tyre polymer fibre (RTPF) reinforced cemented tailings backfill (CTB) is a kind of composite that can treat waste tyres and tailings simultaneously and realize green...journal article 2023
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Kirichek, Alex (author), Rutgers, Ronald (author)As regular maintenance and relocation of sediment deposits are highly expensive, Port authorities seek more efficient solutions for reducing the costs and CO2 emissions of maintenance dredging. One solution, water injection dredging (WID), is carried out for maintaining the sediment deposits which predominantly consist of clay and silt. WID has...journal article 2020
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Ouyang, Xiaowei (author), Wang, Liquan (author), Xu, Shida (author), Ma, Yuwei (author), Ye, G. (author)Carbonation treatment can effectively improve the performance of recycled concrete aggregate and fines due to the reactions of CO<sub>2</sub> with CH and C–S–H gel of cement paste. To better understand the mechanisms involved in the performance improvement, the surface properties of carbonated recycled cement paste powder (CRP) and its effect...journal article 2020
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Shakeel, A. (author), Safar, Z. (author), Ibanez Sanz, M.E. (author), van Paassen, L.A. (author), Chassagne, C. (author)The characteristics of clayey suspensions, majorly composed of quartz microparticles, in the presence of anionic and cationic polyelectrolytes were investigated using different techniques. A wide range of clay concentrations was used, i.e., from 0.07 to 1000 g/L for different experimental techniques, based on the fact that the clay...journal article 2020
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Sun, Yubo (author), Ghorbani, Saeid (author), Dai, Xiaodi (author), Ye, G. (author), De Schutter, Geert (author)This study provides a detailed investigation on the reproducibility of two groups of alkali-activated slag (AAS) mixtures, from both fresh properties and strength development perspectives. Three different commercial sodium silicate solutions and one lab-produced silicate activator (made of silica fume and sodium hydroxide) were used to...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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Srinivasan, Sudharsan (author), van den Akker, H.E.A. (author), Shardt, Orest (author)Using an immersed boundary-lattice Boltzmann method, we investigated the response of dense granular suspensions to time-varying shear rates and flow reversals. The evolution of the relative apparent viscosity and particle structures was analysed. The concentration of solids (ϕ<sub>v</sub>) and particle Reynolds numbers (Re<sub>p</sub>) were...journal article 2021
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Wei, P. (author), Uijttewaal, W.S.J. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)Accurate rheological characterisation of sewage waste activated sludge (WAS) is of high importance for downstream processing related to optimised sludge pumping and mixing, assessment of energy demands and overall process design. However, to elaborate rheological behaviour is often challenging under dynamic operational conditions in practice....journal article 2021
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Sun, Yubo (author), Tao, Yaxin (author), Rahul, A. V. (author), Ye, G. (author), De Schutter, Geert (author)The rapid workability loss of alkali-activated materials (AAM) has been a major obstacle limiting its onsite application. In this study, two conventional SPs (made of polynaphthalene sulfonate (PNS) and lignosulfonate (LS) salts), which have been reported to be effective in some specific AAM mixtures were separately applied in alkali...journal article 2022
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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, 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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Sun, Yubo (author), Mohan, Manu K. (author), Tao, Yaxin (author), Zhang, Yi (author), Van Tittelboom, Kim (author), Ye, G. (author), De Schutter, Geert (author)To properly control the reaction kinetics and fresh properties evolution in conventional alkali-activated materials (AAMs), a conceptual design of two-stream AAMs has been proposed in this study. This is achieved by dividing the solid and liquid components in AAMs, including blast furnace slag (BFS) and electric arc furnace slag (EFS)...journal article 2024
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Chen, Y. (author), Zhang, Y. (author), He, S. (author), Liang, X. (author), Schlangen, E. (author), Copuroglu, Oguzhan (author)In 3D concrete printing, fast structuration is a prerequisite for ideal buildability. This paper aims to study the impact of inorganic additives, i.e., CaCl<sub>2</sub> and gypsum, on structural build-up and very early-age hydration of limestone-calcined clay-cement (LC3) pastes within the first 70–80 min. Results show that, increasing the...journal article 2023
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Zlopasa, J. (author), Norder, B. (author), Koenders, E.A.B. (author), Picken, S.J. (author)Here we report on a study of a rheological behavior of sodium alginate and montmorillonite suspension. We find that viscoelastic behavior of this suspension is dramatically affected with increasing volume fraction of montmorillonite platelets. Addition of montmorillonite generally leads to gel formation, which is attributed to interactions of...journal article 2016
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Jing, R. (author), Apostolidis, P. (author), Liu, X. (author)In this study, a series of viscosity tests were performed to investigate various conditions, i.e. temperature, shear rate and dilution level, on the curing behavior of epoxy bitumen. The results show that curing rate of epoxy bitumen increased with temperature; high shear rate would interfere the formation of crosslinks in epoxy bitumen,...journal article 2022