| 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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Stephan, Dietmar
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (38/38 displayed)
- 2024The development of a fly ash-based geopolymer for extrusion-based 3D printing, along with a printability prediction method
- 2024Factors influencing thermal conductivity and compressive strength of natural fiber-reinforced geopolymer foams
- 2024Effect of resting time on rheological properties of glass bead suspensions: Depletion and bridging force among particles
- 2024Tailored rheological development in OPC systems by controlled ettringite precipitation and its effect on compressive strength
- 2024Use of residues as fillers in alkali‐activated binders
- 2024Investigation of the interface of fungal mycelium composite building materials by means of low‐vacuum scanning electron microscopycitations
- 2023Interlaboratory study on rheological properties of cement pastes and reference substances: comparability of measurements performed with different rheometers and measurement geometries
- 2023Presenting SLAMD – A Sequential Learning Based Software for the Inverse Design of Sustainable Cementitious Materialscitations
- 2023Seawater-Mixed Lightweight Aggregate Concretes with Dune Sand, Waste Glass and Nanosilica: Experimental and Life Cycle Analysis
- 2023Seawater-Mixed Lightweight Aggregate Concretes with Dune Sand, Waste Glass and Nanosilica: Experimental and Life Cycle Analysiscitations
- 2023Penetration test as a fast method to determine yield stress and structural build-up for 3D printing of cementitious materials
- 2023Data driven design of alkali-activated concrete using sequential learningcitations
- 2023Effect of resting time on rheological properties of glass bead suspensions: Depletion and bridging force among particlescitations
- 2023Provenancing of cement using elemental analyses and isotope techniques – the state-of-the-art and future perspectives
- 2022Xonotlite and hillebrandite as model compounds for calcium silicate hydrate seeding in cementitious materials
- 2022The Influence of Long-Term Autoclaving on the Properties of Ultra-High Performance Concretecitations
- 2022Insight into the microstructural and durability characteristics of 3D printed concrete: Cast versus printed specimens
- 2022Printable Cement-Based Materials: Fresh Properties Measurements and Controlcitations
- 2022Boosting Portland cement-free composite performance via alkali-activation and reinforcement with pre-treated functionalised wheat strawcitations
- 2021Early performances of cement paste in the presence of triethanolamine: Rheology, setting and microstructural development
- 2021The performance of ultra-lightweight foamed concrete incorporating nanosilica
- 2021Xonotlite and Hillebrandite as Model Compounds for Calcium Silicate Hydrate Seeding in Cementitious Materialscitations
- 2021Reaction of calcium carbonate minerals in sodium silicate solution and its role in alkali-activated systemscitations
- 2021Factors influencing thermal conductivity and compressive strength of natural fiber-reinforced geopolymer foamscitations
- 2021The effects of seawater and nanosilica on the performance of blended cements and composites
- 2021Evaluation of the effects of bismuth oxide (Bi2O3) micro and nanoparticles on the mechanical, microstructural and γ-ray/neutron shielding properties of Portland cement pastes
- 2021The effects of seawater on the hydration, microstructure and strength development of Portland cement pastes incorporating colloidal silica
- 2021Evaluating the effects of nanosilica on the material properties of lightweight and ultra-lightweight concrete using image-based approaches
- 2021Influence of foreign ions on calcium silicate hydrate under hydrothermal conditions: a reviewcitations
- 2020Interlaboratory study on rheological properties of cement pastes and reference substances: comparability of measurements performed with different rheometers and measurement geometries
- 2020Interlaboratory study on rheological properties of cement pastes and reference substances: comparability of measurements performed with different rheometers and measurement geometries
- 2020A Systematic Study on Polymer-Modified Alkali-Activated Slag−Part II: From Hydration to Mechanical Properties
- 2020Interlaboratory study on rheological properties of cement pastes and reference substances : comparability of measurements performed with different rheometers and measurement geometries
- 2020Interaction of Different Charged Polymers with Potassium Ions and Their Effect on the Yield Stress of Highly Concentrated Glass Bead Suspensionscitations
- 2019Preparation and Characterization of Ultra-Lightweight Foamed Concrete Incorporating Lightweight Aggregates
- 2019Influence of Nanosilica on Mechanical Properties, Sorptivity, and Microstructure of Lightweight Concrete
- 2019Relating Ettringite Formation and Rheological Changes during the Initial Cement Hydration: A Comparative Study Applying XRD Analysis, Rheological Measurements and Modelingcitations
- 2018The influence of nanomaterials on the thermal resistance of cement-based composites – a review
Places of action
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article
Xonotlite and Hillebrandite as Model Compounds for Calcium Silicate Hydrate Seeding in Cementitious Materials
Abstract
<jats:p> The demand for more environmentally friendly cement with no disadvantages in relation to hydration activity has led to the development of various additives to accelerate cement hydration. As calcium silicate hydrate (C-S-H) is the major hydration product of cement and is responsible for its mechanical properties, it plays an outstanding role in the discussion of nanoparticle additives. Nevertheless, the investigation of its mechanism of action is complicated by the similarity of its properties to those of the C-S-H that forms as an initial hydration product. Crystalline C-S-H phases, on the other hand, can be easily distinguished from the original hydration products, which makes them a valuable model compound for studying the mechanisms of nucleation seeding in cementitious materials. In this paper, the effect of crystalline types of C-S-H as nucleation seeds are presented. Xonotlite and hillebrandite were thoroughly characterized using nuclear magnetic resonance, X-ray diffractometry (XRD), scanning electron microscopy (SEM), and infrared spectroscopy (IR) and were then used as an admixture for alite pastes. Low-vacuum SEM images of the hydrated pastes revealed that xonotlite can significantly promote the visible etch pit formation on C<jats:sub>3</jats:sub>S clinker particles, which was not found to be true for hillebrandite. Whether the phases act as a nucleation site is assumed to be strongly dependent on the mineralogy: hillebrandite appeared to be heavily overgrown, but xonotlite did not show any hydration products on its surfaces after the same hydration time of up to 24 h. The diverse effect of the minerals was confirmed by the accelerating behavior in isothermal heat flow calorimetry and by XRD. </jats:p>