Abstract
Cement paste with low water/cement ratio of 0.3 was observed using AFM. It is found that C-S-H has self similarity trait from scanning scale 20 μm×20 μm down to 300 nm×300 nm, and the feature of C-S-H at large scale is very similar to those smaller scales. It can be concluded that C-S-H is composed with some fundamental spherical globule, the fundamental globules agglomerate into bigger ones, moreover the bigger ones agglomerate into even bigger one. A C-S-H globule fractal model was put forward to describe the self similarity of the C-S-H globule, which can be used to reveal how the C-S-H globule contacts with each other.
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Shen, W., Zhang, T., Hu, J. et al. Self similarity of the spherical C-S-H particle in cement paste. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 24, 684–687 (2009). https://doi.org/10.1007/s11595-009-4684-6
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DOI: https://doi.org/10.1007/s11595-009-4684-6