Hydraulic Properties of Tetracalcium Aluminoferrite with Adsorption of Silicate Ions

Kwang Suk You; Ji Whan Ahn; Bong Han Lee; Choon Han

doi:10.4028/www.scientific.net/MSF.510-511.994

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Inhibition Mechanism of Magnesium Ion on Carbonation Reaction with Ca(OH)₂ and CO₂
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Hydraulic Properties of Tetracalcium Aluminoferrite with Adsorption of Silicate Ions
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Hydraulic Properties of Tetracalcium Aluminoferrite with Adsorption of Silicate Ions

Abstract:

The results obtained in this study confirm that the hydration of C4AF (C: CaO, A: Al2O3, F: F2O3) is retarded by the presence of silicate ions in the solution. In practical terms, C4AF has a low hydraulic reactivity in solution containing silicate ions. The silicate ions in the solution are adsorbed on the surface of the C4AF particles, and they form a silica layer on the surface. From the results of the calculation with the DX-Xα method, it is also believed that silicate ions adsorbed on the surface are very stable, and that there are strong interactions between silicate ions and the surface of C4AF.