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3D experimental investigation of the microstructure of cement pastes using synchrotron X-ray microtomography (μCT)

Gallucci, E. / Scrivener, K. / Groso, A. / Stampanoni, M. / Margaritondo, G.

AbstractCement pastes aged from 1 to 60 days were studied using synchrotron microtomography on the MS-X04SA beam line at the Swiss Light Source. This allowed three dimensional images to be obtained with a resolution approaching that of backscattered electron images in the SEM. From these images, several features can be extracted and studied, both quantitatively and morphologically. In this study, attention was focused on the reacting anhydrous cement grains and porosity. Three dimensional imaging of capillary porosity allowed the connectivity and tortuosity of the pore network to be studied. It is shown that the degree of connectivity of the pore network is very sensitive to both the spatial resolution of the images and the evolution of contrast resolution during ageing of the cement.

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3D experimental investigation of the microstructure of cement pastes using synchrotron X-ray microtomography (μCT)

Gallucci, E. / Scrivener, K. / Groso, A. / Stampanoni, M. / Margaritondo, G.

AbstractCement pastes aged from 1 to 60 days were studied using synchrotron microtomography on the MS-X04SA beam line at the Swiss Light Source. This allowed three dimensional images to be obtained with a resolution approaching that of backscattered electron images in the SEM. From these images, several features can be extracted and studied, both quantitatively and morphologically. In this study, attention was focused on the reacting anhydrous cement grains and porosity. Three dimensional imaging of capillary porosity allowed the connectivity and tortuosity of the pore network to be studied. It is shown that the degree of connectivity of the pore network is very sensitive to both the spatial resolution of the images and the evolution of contrast resolution during ageing of the cement.

3D experimental investigation of the microstructure of cement pastes using synchrotron X-ray microtomography (μCT)

Gallucci, E. / Scrivener, K. / Groso, A. / Stampanoni, M. / Margaritondo, G.

AbstractCement pastes aged from 1 to 60 days were studied using synchrotron microtomography on the MS-X04SA beam line at the Swiss Light Source. This allowed three dimensional images to be obtained with a resolution approaching that of backscattered electron images in the SEM. From these images, several features can be extracted and studied, both quantitatively and morphologically. In this study, attention was focused on the reacting anhydrous cement grains and porosity. Three dimensional imaging of capillary porosity allowed the connectivity and tortuosity of the pore network to be studied. It is shown that the degree of connectivity of the pore network is very sensitive to both the spatial resolution of the images and the evolution of contrast resolution during ageing of the cement.

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Title:

3D experimental investigation of the microstructure of cement pastes using synchrotron X-ray microtomography (μCT)

Contributors:

Gallucci, E. (author) / Scrivener, K. (author) / Groso, A. (author) / Stampanoni, M. (author) / Margaritondo, G. (author)

Published in:

Cement and Concrete Research ; 37 ; 360-368

Publication date:

2006-10-23

Size:

9 pages

ISSN:

DOI:

https://doi.org/10.1016/j.cemconres.2006.10.012

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

D—cement paste , B—microstructure , B—synchrotron microtomography , B—image analysis

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