Quantitative comparison of real and CEMHYD3D model microstructures using correlation functions

A quantitative comparison of real and computer-generated (model) cement paste microstructures based on the analysis of three-dimensional image sets is presented. In addition to a visual presentation of extracted two-dimensional images, the comparison is based on the calculation of the normalized two...

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Bibliographic Details
Published in:Cement and concrete research 2006-02, Vol.36 (2), p.259-263
Main Author: Bentz, Dale P.
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Cement concrete constituents
Cements
Exact sciences and technology
Image analysis
Materials
Microstructure
Modeling
Properties and test methods
Properties of anhydrous and hydrated cement, test methods
X-ray tomography
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Summary:A quantitative comparison of real and computer-generated (model) cement paste microstructures based on the analysis of three-dimensional image sets is presented. In addition to a visual presentation of extracted two-dimensional images, the comparison is based on the calculation of the normalized two-point correlation function for a variety of phases including unhydrated cement, hydration products, and capillary porosity. A favorable comparison is observed between model and real microstructures for both the two-dimensional images and the computed correlation functions. Several interesting observations from the correlation analysis are introduced and discussed. This analysis provides one further validation of the use of microstructure models to predict the microstructure and properties of cement-based materials.
ISSN:0008-8846
1873-3948
DOI:10.1016/j.cemconres.2005.07.003