Abstract

In the paper two advanced methods for testing cement based composites are described and compared. These are X-ray microtomography and optical microscopy. Microtomography supplies three-dimensional images of small concrete specimens. In the tomograms all cracks, pores and other voids and inclusions, that exceed a few micrometers, are shown. Such visualisation can become a valuable tool for analysis of the basic material properties. Images obtained on thin sections and analysed with various methods on optical microscopes supply additional information on material microstructure that cannot be obtained in tomograms. For example it is relatively easy to determine zone penetrated by CO[2] ingress. These two methods, presented on examples of tests, complete each another in order to supply a set of information on composition and defects of tested composite materials.

Details

Title
Application of X-Ray Microtomography and Optical Microscopy to Determine the Microstructure of Concrete Penetrated by Carbon Dioxide/ Zastosowanie Mikrotomografii Komputerowej I Mikroskopii Optycznej Do Oceny Mikrostruktury Betonow Poddanych Dzialaniu Co2
Author
Ranachowski, Z; Józwiak-Niedzwiedzka, D; Ranachowski, P; Rejmund, F; Dabrowski, M; Kudela, S; Dvorak, T
Pages
1441-1447
Publication year
2014
Publication date
Dec 2014
Publisher
Polish Academy of Sciences
ISSN
17333490
e-ISSN
23001909
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1697772324
Copyright
Copyright De Gruyter Open Sp. z o.o. Dec 2014