Surface properties of cement hydration products. I. Pore structure of calcium silicate hydrates prepared in a suspension form

作者: R. Sh. Mikhail , A. M. Kamel , S. A. Abo-El-Enein

DOI: 10.1002/JCTB.5010191105

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摘要: Adsorption–desorption isotherms of water vapour at 30° were determined on preparations calcium silicate hydrates different molar ratios lime/silica before and after free lime silica extractions. From these specific surface areas measured total pore structure analysis was evaluated. A layer thickness (t) curve for the adsorption constructed, based experimental curves previously published number layers adsorbed a variety non-porous solids with same heat as hydrates. The existence both wide pores micropores detected in hydrates. When samples from uncombined estimated to have an average hydraulic radius 4–5 A, whereas had size 10 A. Wide up 200 A also exist. The predominantly parallel plates.

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