| 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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Van Breugel, Klaas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (42/42 displayed)
- 2024Two scale models for fracture behaviours of cementitious materials subjected to static and cyclic loadingscitations
- 2021Experimental investigation of the short-term creep recovery of hardened cement paste at micrometre length scalecitations
- 2021Modeling of microstructural effects on the creep of hardened cement paste using an experimentally informed lattice modelcitations
- 2020Micro-cantilever testing on the short-term creep behaviour of cement paste at micro-scalecitations
- 2020Micro-cantilever testing on the short-term creep behaviour of cement paste at micro-scalecitations
- 2019Micro-Cantilever Testing Of Cementitious Materials Under Various Loading Conditionscitations
- 2019Strain-Hardening Cementitious Composite (SHCC) For Durable Concrete Repair
- 2018Static and Fatigue Tests on Cementitious Cantilever Beams Using Nanoindenter
- 2018Numerical analysis of effect of micro-cracking and selfhealing on the long-term creep of cementitious materials
- 2017Moisture movement in cement-based repair systems monitored by X-ray absorption
- 2017Failure modes in concrete repair systems due to ongoing corrosioncitations
- 2016Interactie beton en reparatiemiddel (1)
- 2016A 3D lattice modelling study of drying shrinkage damage in concrete repair systemscitations
- 2016Interactie beton en reparatiemiddel (2)
- 2015Monitoring carbon steel behavior under biotic and abiotic conditionscitations
- 2014Nondestructive determination of chloride concentration using Ag|AgCl electrodes produced by electrochemical anodization
- 2014A modelling study of drying shrinkage damage in concrete repair systems
- 2013Concrete in engineered barriers for radioactive waste disposal facilities: phenomenological study and assessment of long term performance
- 2012Hardening process of binder paste and microstructure developmentcitations
- 2010Modelling and predicting effects of deterioration mechanisms
- 20103D simulation of micromechanical behavior of cement paste
- 2008Multi-scale modelling: the delftcode
- 2007Surface zone modelling and its effect on the durability of concrete structures
- 2007The effect of cracks on chloride penestration into concrete
- 2007In-Situ investigation of durability performance of reinforced concrete bridges in metropolitan area
- 2007Chlorides diffusion for concrete bridge decks due to de-icing salts
- 2007The effect of increasing Co2 concentration on carbonation of concrete structures
- 2006Combined experimental and numerical investigation on the mechanism of frost salt scaling in cement mortars
- 2006Carbonation of opc and slag cement systems: mineralogical an morphological aspects
- 2006Towards modelling hydrating concrete
- 2006Verhardingsbeheersing in vogelvlucht
- 2006Carbonation of OPC and slag cement systems: mineralogical and morphological aspects
- 2006Simulation of damage mechanisms in hardening concrete slabs, overlays and pavements
- 2006Crack healing of early age cracks in concrete
- 2006Theoretical approach to calculate surface chloride content Cs of submerged concrete under sea water laden environment
- 2006Investigation of crack widths for the effect of cracks on chloride penetration of concrete
- 2005Experimental study of crack healing of early age cracks
- 2005A virtual testing lab for building materials
- 2005Prediction of tensile strength reduction of concrete due to ASR
- 2005Frost salt scaling modeling of cement paste
- 2004Interfaces homogeneous or heterogeneous micro-structure
- 2003Multi-scale modelling of crack formation in the concrete cover zone
Places of action
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article
Modeling of microstructural effects on the creep of hardened cement paste using an experimentally informed lattice model
Abstract
<p>This paper presents a method to numerically investigate the microstructural effect on the creep behavior of cement paste at the microscale. The lattice fracture model is extended to consider local time-dependent deformations of calcium-silicate-hydrate phases in the cement paste by imposing local forces. The term “experimentally informed model” is used herein as the heterogeneous microstructures of hardened cement pastes were obtained by using the X-ray computed microtomography and directly implemented into the model. The mechanical and creep properties of different constituents at the resolution of 5 µm were inversely identified from the fracture and creep bending tests on cementitious microcantilever beams at the microscale. The model is then validated through the comparison with the testing results of cement pastes with different w/c ratios and microstructures. It is found that the developed model can successfully reproduce experimentally observed behaviors and be applied to explain the experimental results in detail. With the method presented in this paper, the relationship between the volume fractions of different components and the global creep behavior of cement paste can be established. The validation of the model performed at the microscale forms a basis for the multiscale analysis of concrete creep.</p>