| 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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Galan, Isabel
Graz University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023New Insights into the Carbonation Process of Mortars and Concretescitations
- 2023Concrete corrosion analysis using optical chemical sensors and imaging
- 2023Optical sensors for the durability assessment of cement-based infrastructure
- 2022The hydration of fast setting spray binder versus (aluminum sulfate) accelerated OPCcitations
- 2022In situ pH monitoring in accelerated cement pastescitations
- 2021Continuous optical in-situ pH monitoring during early hydration of cementitious materialscitations
- 2021Durability of clinker reduced shotcrete: Ca2+ leaching, sintering, carbonation and chloride penetrationcitations
- 2021Durability of clinker reduced shotcrete: Ca2+ leaching, sintering, carbonation & chloride penetrationcitations
- 2019Hydration processes of accelerated cementitious systems governing early strength development
- 2017Enthalpy of formation of ye’elimite and ternesite
- 2014Characterization of micro-pore structure in novel cement matricescitations
- 2012Thermogravimetrical analysis for monitoring carbonation of cementitious materialscitations
Places of action
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article
Characterization of micro-pore structure in novel cement matrices
Abstract
<p>Calcium sulfoaluminate (CSA) cements are being developed using a novel processing method having as its objective lowering specific CO2 emissions by ∼50% relative to a Portland cement benchmark. We need to be able to measure the properties of the products. Porosity and permeability measurements help define the engineering properties but their quantification is influenced by the choice of experimental protocols. In the present study we used ordinary Portland cement (PC) paste as a benchmark and hydrated ye'elimite, which is a main component of CSA cements, to understand its pore structure. We report on the use of synchrotron-sourced radiation for μCT (Computerized Tomography) and 3D image re-construction of the internal micro-pore structure of PC and ye'elimite-gypsum pastes. As a comparison, porosity and permeability measurements were traditionally obtained using Mercury Intrusion Porosimetry (MIP). The Mori-Tanaka method and the polynomial statistical model were used to analyze the effects of different 3-D micro-pore structures on mechanical properties. The results show that e micro-pore structures differ considerably between PC and ye'elimite pastes and their bulk modulus is significantly affected by the shapes of their micro-pore structures.</p>