Title :

Mesoscale pore structure of a high‐performance concrete by coupling focused ion beam/scanning electron microscopy and small angle X‐ray scattering

Author(s) :

Brisard, Sébastien [Auteur]
DAVY, Catherine [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Centrale Lille
Michot, Laurent [Auteur]
Troadec, david [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Levitz, Pierre [Auteur]

Journal title :

Journal of the American Ceramic Society

Volume number :

102

Pages :

2905-2923

Publisher :

Wiley

Publication date :

2018-09-26

English keyword(s) :

focused ion beam/scanning electron microscopy
high‐performance concrete
mesoscale pore network
small angle X‐ray scattering

HAL domain(s) :

Chimie/Matériaux

English abstract : [en]

This contribution couples (a) Small angle X‐ray scattering (SAXS) experiments of a high‐performance concrete (HPC) at the millimetric scale, and (b) Focused ion beam/scanning electron microscopy (FIB/SEM) of the cement ...
Show more >This contribution couples (a) Small angle X‐ray scattering (SAXS) experiments of a high‐performance concrete (HPC) at the millimetric scale, and (b) Focused ion beam/scanning electron microscopy (FIB/SEM) of the cement paste of the HPC, with 10‐20 nm voxel size. The aim is to improve the understanding of the 3D pore network of the HPC at the mesoscale (tens of nm), which is relevant for fluid transport. The mature HPC is an industrial concrete, based on pure Portland CEMI cement, and planned for use as structural elements for deep underground nuclear waste storage. Small angle X‐ray scattering patterns are computed from the 3D pore images given by FIB/SEM (volumes of 61‐118 μm3). They are positively correlated with SAXS measurements (volumes of 5 mm3). Aside from correlations with FIB/SEM data, experimental SAXS allows to investigate a wider range of effects on the pore structure. These are mainly the HPC drying state, the presence of aggregates (by analyzing data on cement paste alone), and the use of Poly Methyl MethAcrylate resin impregnation.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

ISEN
Univ. Valenciennes
ENSCL
CNRS
Institut Catholique Lille
Centrale Lille
Univ. Artois
Université de Lille

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520
• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

Chimie, matériaux et procédés pour un nucléaire durable (CIMEND)

Submission date :

2019-09-25T15:07:07Z
2021-02-26T14:52:37Z
2021-02-26T15:14:18Z