Author:
Bentz D.P.,Martys Nicos. S.,Stutzman P.,Levenson M. S.,Garboczi E.J.,Dunsmuir J.,Schwartz L. M.
Abstract
AbstractX-ray microtomography can be used to generate three-dimensional 5123 images of random materials at a resolution of a few micrometers per voxel. This technique has been used to obtain an image of an ASTM C109 mortar sample that had been exposed to a sodium sulfate solution. The three-dimensional image clearly shows sand grains, cement paste, air voids, cracks, and needle-like crystals growing in the air voids. Volume fractions of sand and cement paste determined from the image agree well with the known quantities. Implications for the study of microstructure and proposed uses of X-ray microtomography on cement-based composites are discussed.
Publisher
Springer Science and Business Media LLC
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