3D Experimental Investigation of the Microstructure of Cement Pastes using Synchrotron X-ray Microtomography ([mu]CT)

Cement pastes aged from 1-60 days were studied using synchrotron microtomography on the MS-X04SA beam line at the Swiss Light Source. This allowed 3-D 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. 3-D 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 aging of the cement.

• Record URL:
  • https://doi.org/10.1016/j.cemconres.2006.10.012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Supplemental Notes:
  • Abstract reprinted with permission from Elsevier
• Authors:
  • Gallucci, E
  • Scrivener, K
  • Groso, A
  • Stampanoni, M
  • Margaritondo, G
• Publication Date: 2007-3

Language

• English

Media Info

• Features: Photos; References;
• Pagination: pp 360-368
• Serial:
  • Cement and Concrete Research
  • Volume: 37
  • Issue Number: 3
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Aging (Materials); Cement paste; Concrete construction; Durability; Image analysis; Microstructure; Porosity
• Uncontrolled Terms: Backscattered electron imaging
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01046673
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 25 2007 1:46PM