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Journal Articles Construction and Building Materials Year : 2016

Determination of the proportion of anhydrous cement using SEM image analysis

Abstract

The proportion of anhydrous cement in materials is essential data in relation to reactivity potential, particularly in by-products that may be reused it in concrete techniques. This paper presents a method based on Scanning Electron Microscopy (SEM) image analysis and a specific program in Matlab that was developed to statistically determine the proportion of anhydrous cement. Industrial by-products containing anhydrous cement were tested by this method and a percentage of around 15-20% was found in the analyzed by-products. The reliability of these results is noteworthy in comparison with those given by classical image analysis software. The reactive characteristic and the hydration kinetics of the analyzed by-products were also verified using isothermal calorimetry and a mechanical study of standard mortars in which the cement had been partially replaced by these by-products. (C) 2016 Elsevier Ltd. All rights reserved.
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hal-01849727 , version 1 (26-07-2018)

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Blanc Gael, Tribout Christelle, Gilles Escadeillas, Sandrine Geoffroy, Soum-Fontez Tristan. Determination of the proportion of anhydrous cement using SEM image analysis. Construction and Building Materials, 2016, 126, pp.157--164. ⟨10.1016/j.conbuildmat.2016.09.037⟩. ⟨hal-01849727⟩
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