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Influence of sodium nitrate on the phases formed in the MgO-Al2O3-SiO2-H2O system
2020
Materials & design
Magnesium alumino silicate hydrate is the main product of the MgO-Al 2 O 3 -SiO 2 -NaNO 3 -H 2 O system at low Al content (8-16 wt.%) • Precipitation of hydrotalcite decreases the incorporation of aluminium in the magnesium alumino silicate hydrate • Possible formation of zeolitic-like precursor (N-A-S-H) gels in low content • Small uptake of sodium in the diffusive layer of the solids occurs at this pH (~8-10) Keywords: Magnesia silicate cement Alkali magnesia alumino silicate cement Phase
doi:10.1016/j.matdes.2020.109391
fatcat:cnanjk6j35akljirrwc2agbkfu