| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ukrainczyk, Neven
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (52/52 displayed)
- 2025Reactive transport modeling of acetic acid-induced degradation in portland cement paste
- 2025Coarse-Grained Monte Carlo Simulations of Graphene-Enhanced Geopolymer Nanocomposite Nucleationcitations
- 2024Carbon nanotubes and nanohorns in geopolymers: A study on chemical, physical and mechanical propertiescitations
- 2024Environmental benchmarks for the European cement industrycitations
- 2024Modeling SAOS Yield Stress of Cement Suspensions: Microstructure-Based Computational Approach
- 2024Reactive transport modeling of acetic acid-induced degradation in portland cement paste
- 2024From quarry to carbon sink: process-based LCA modelling of lime-based construction materials for net-zero and carbon-negative transformationcitations
- 2024Atomistic Insights into Silicate Dissolution of Metakaolinite under Alkaline Conditions: Ab Initio Quantum Mechanical Investigationcitations
- 2024Impact of Superplasticizers on the Performance of Low-Grade Limestone-Based Cement Mixes
- 2024Cradle-to-grave environmental and economic sustainability of lime-based plasters manufactured with upcycled materialscitations
- 2024Pozzolanic Metakaolin Reactions: Stoichiometric and Kinetic Modelingcitations
- 2024Pozzolanic metakaolin reactivity: Time-dependent influence of calcium hydroxide, alkali hydroxides, and sulfatescitations
- 2024Electrical conductivity of geopolymer-graphite composites: Percolation, mesostructure and analytical modelingcitations
- 2023Early metakaolin reactions in pozzolanic R3-test: calorimetry baseline correction of initial temperature jump due to ex-situ mixingcitations
- 2023Finite Element Analysis of Shear Reinforcing of Reinforced Concrete Beams with Carbon Fiber Reinforced Polymer Grid-Strengthened Engineering Cementitious Compositecitations
- 2023How to improve the cradle-to-gate environmental and economic sustainability in lime-based construction materials? Answers from a real-life case-studycitations
- 2023Effect of Carbon Nanomaterials on the Microstructural and Mechanical Properties of Geopolymer Binders
- 2023Calibration of Tang’s Model for Concentration Dependence of Diffusion in Cementitious Materials
- 2023Corrosion Resistance of Calcium Aluminate Cements in Sewer Environmentscitations
- 2023Pozzolanic Reactions of Metakaolin with Calcium Hydroxide: Review on Hydrate Phase Formations and Effect of Alkali Hydroxides, Carbonates and Sulfatescitations
- 2023Theoretical elastic constants of tobermorite enhanced with reduced graphene oxide through hydroxyl vs epoxy functionalization: A first-principles studycitations
- 2023Atomistic Dissolution of β-C2S Cement Clinker Crystal Surface: Part 1 Molecular Dynamics (MD) Approach
- 2023Theoretical Studies of Adsorption Reactions of Aluminosilicate Aqueous Species on Graphene-Based Nanomaterials: Implications for Geopolymer Binderscitations
- 20233D Off-Lattice Coarse-Grained Monte Carlo Simulations for Nucleation of Alkaline Aluminosilicate Gelscitations
- 2023R3-Test for Pozzolanic Reactivity: Experimental Issues and Practical Recommendations for Hydration Stoppage with Isopropanolcitations
- 2023Coarse-Grained Monte Carlo Simulations with Octree Cells for Geopolymer Nucleation at Different pH Valuescitations
- 2023Silicate Dissolution Mechanism from Metakaolinite Using Density Functional Theorycitations
- 2022Dissolution of β-C<sub>2</sub>S Cement Clinker: Part 1 Molecular Dynamics (MD) Approach for Different Crystal Facetscitations
- 2022Enhanced Metakaolin Reactivity in Blended Cement with Additional Calcium Hydroxidecitations
- 2022Thermodynamic Modeling and Experimental Validation of Acetic Acid Attack on Hardened Cement Paste: Effect of Silica Fumecitations
- 2022Bond Behavior of a Bio-Aggregate Embedded in Cement-Based Matrixcitations
- 2022Dissolution of Portlandite in Pure Water: Part 1 Molecular Dynamics (MD) Approachcitations
- 2022Acid resistance of alkali-activated materials: recent advances and research needscitations
- 2022Dissolution of Portlandite in Pure Water: Part 2 Atomistic Kinetic Monte Carlo (KMC) Approachcitations
- 2022A phase-field approach for portlandite carbonation and application to self-healing cementitious materialscitations
- 2022Dissolution of β-C<sub>2</sub>S Cement Clinker: Part 2 Atomistic Kinetic Monte Carlo (KMC) Upscaling Approachcitations
- 2021A Mass Balance Approach for Thermogravimetric Analysis in Pozzolanic Reactivity R<sup>3</sup> Test and Effect of Drying Methodscitations
- 2021Effect of microcrystalline cellulose on geopolymer and Portland cement pastes mechanical performancecitations
- 2021Cu- and Zn-doped alkali activated mortar – Properties and durability in (bio)chemically aggressive wastewater environmentscitations
- 2021Effect of Silica Fume on Metakaolin Geopolymers’ Sulfuric Acid Resistancecitations
- 2021Numerical Phase-Field Model Validation for Dissolution of Mineralscitations
- 2020Modeling SAOS Yield Stress of Cement Suspensions: Microstructure-Based Computational Approachcitations
- 2020Evaluation of Sulfuric Acid-Induced Degradation of Potassium Silicate Activated Metakaolin Geopolymers by Semi-Quantitative SEM-EDX Analysiscitations
- 2020Influence of Micro-Pore Connectivity and Micro-Fractures on Calcium Leaching of Cement Pastes—A Coupled Simulation Approachcitations
- 2020Long-term in situ performance of geopolymer, calcium aluminate and Portland cement-based materials exposed to microbially induced acid corrosioncitations
- 2019Reactivity and Microstructure of Metakaolin Based Geopolymers: Effect of Fly Ash and Liquid/Solid Contentscitations
- 2019Relating Ettringite Formation and Rheological Changes during the Initial Cement Hydration: A Comparative Study Applying XRD Analysis, Rheological Measurements and Modelingcitations
- 2019Geopolymer, Calcium Aluminate, and Portland Cement-Based Mortars: Comparing Degradation Using Acetic Acidcitations
- 2018Advances in concrete materials for sewer systems affected by microbial induced concrete corrosioncitations
- 2018Microbial induced acid corrosion from a field perspective-Advances in process understanding and construction material developmentcitations
- 2018MICROBIAL INDUCED ACID CORROSION FROM A FIELD PERSPECTIVE – ADVANCES IN PROCESS UNDERSTANDING AND CONSTRUCTION MATERIAL DEVELOPMENT
- 2016Modelling Mineral Foam Morphology Dynamics for Stability and Insulation Properties
Places of action
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article
Modeling SAOS Yield Stress of Cement Suspensions: Microstructure-Based Computational Approach
Abstract
<jats:p>Two static yield stress models, one known as YODEL and the newly proposed BreakPro, based on inter-particle bond breaking probability, were employed to comparatively simulate the yield stress of cement suspensions, induced by oscillatory rheological tests with small amplitude oscillatory shear (SAOS). This yield stress occurs at a critical strain in the order of 0.01%, and is commonly attributed to the limit of the linear viscoelastic domain, where attractive forces bridge the cement particles and form a flocculated particle network. YODEL is based on van der Waals (vdW) interaction forces to describe the yield stress for flow onset at a critical strain of a few percent, developed for simple non-reactive particulate suspensions. However, due to the high pH and reactivity of cementitious suspensions, their particle interaction forces are much higher than vdW. Therefore, until now, the YODEL adaptations to cementitious suspensions did not explicitly consider the microstructural-based salient feature of the original model, but used it as an implicit fitting parameter to scale the average attractive force. In this paper, the force is inversely estimated using the full power of the two microstructural-based models, presenting a new mathematical tool for investigating the fragility of the rigid percolated structure of cement suspensions. The model parameters were calibrated on measured yield stresses obtained by SAOS measurements in a high-sensitivity rheometer. The estimated forces were found to be 5.57 (BreakPro) and 1.43 (YODEL) times higher than typical van der Waals forces. The YODEL percolation threshold of 21% turned out to be significantly lower than the one found by the BreakPro model (37%). This indicated that BreakPro modeling assumptions are better suited for the description of yield stress at SAOS critical strain than the YODEL model.</jats:p>