Fabien Jacques Michel Georget

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Exposure of concrete to the atmosphere changes the microstructure of the cement paste. However, knowledge about the alteration of the porosity due to drying is typically not considered in deterioration processes of the hardened cement paste. The purpose of ...

During carbonation, the microstructure of a cement paste is strongly modified, which induces a dynamic feedback loop impacting the global advancement of the reaction. In this study, we investigate the effect of the microstructure model on simulations of ac ...

The characterisation of cement paste microstructure is an important step towards understanding durability mechanisms in cementitious materials. Scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDS) is a widely used technique ...

A wide range of systems were exposed to a seawater-like chloride concentration (0.5 M Cl−) for bulk diffusion experiments over 0.5, 1 and 4 years. Combined with previously published findings on chloride binding and mini-migration testing, the results showe ...

A chloride mini-migration method is proposed to estimate effective diffusion coefficients at the scale of the cement paste and to investigate mechanisms with complementary microstructure analyses on the same material. Blended-cement pastes with a wide rang ...

We propose and analyse a unified reactive transport model for leaching of cement paste in brines, with and without CO2. We investigate the impact of the boundary conditions on the rate of propagation of the reaction. In agreement with experiments, we obser ...

This paper presents a comparison of methods to quantify the chloride binding capacity for cementitious materials composed of Ordinary Portland Cement (OPC) and Limestone (LS, 0 to 55% replacement). Physical and chemical chloride bindings were investigated ...

Almost all properties of hydrated cementitious materials depend strongly on their pore structure. Many methods to quantify porosity have been applied to cementitious materials, but there is a huge confusion in the literature about the utility of these meth ...

In a recent article, we described the edxia framework, a user-friendly framework to analyse the microstructure of cementitious materials using SEM-EDS hypermaps. The manual approach presented was shown to be efficient to answer the relevant scientific ques ...

This study investigates chloride binding in blended cement pastes exposed to 0.5 M NaCl solutions (with and without pH adjustment) using X-ray diffraction and energy-dispersive X-ray spectroscopy image analysis (edxia). The aim is to better understand the ...

Fabien Jacques Michel Georget

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Evolution of microstructural changes in cement paste during environmental drying

Impact of the microstructure model on coupled simulation of drying and accelerated carbonation

edxia: Microstructure characterisation from quantified SEM-EDS hypermaps

Towards a two-step assessment of the chloride ingress behaviour of new cementitious binders

Unravelling chloride transport/microstructure relationships for blended-cement pastes with the mini-migration method

Reactive transport modelling of cement paste leaching in brines

Quantification methods for chloride binding in Portland cement and limestone systems

Reconciliation of pore structure characterization methods: The simple case of PC-limestone cement pastes

Simple automation of SEM-EDS spectral maps analysis with Python and the edxia framework

Insights on chemical and physical chloride binding in blended cement pastes