A quantitative structural study of fresh cement paste by image analysis part 1: Image processing

Flocculation and deflocculation have a fundamental role to play in the use of mortar and concrete. In order to monitor these phenomena more fully, we need to have a better understanding of the structure of fresh cement paste. The work presented in this publication is part of the process of meeting t...

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Bibliographic Details
Published in:Cement and concrete research 1991-09, Vol.21 (5), p.835-843
Main Authors: Barrioulet, M., Saada, R., Ringot, E.
Format: Article
Language:English
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Summary:Flocculation and deflocculation have a fundamental role to play in the use of mortar and concrete. In order to monitor these phenomena more fully, we need to have a better understanding of the structure of fresh cement paste. The work presented in this publication is part of the process of meeting this need. By applying a technique of cryosublimation together with epoxy resin impregnation to fresh cement paste samples, we can obtain SEM images of test-piece cross-sections where the initial arrangement of anhydrous cement grains is modified neither by hydration nor by experimental procedure. Paste structure can thus be investigated by quantitative image analysis. By using a new method of image processing during filtering and binarization, we can obtain a binary image which faithfully reproduces the original image and on which we can then carry out geometrical parameter measurements.
ISSN:0008-8846
1873-3948
DOI:10.1016/0008-8846(91)90178-K