Microstructural disorder and calcium carbonate reactivity with monocalcium aluminate during hydration

The use of infrared spectroscopy has shown that even the order involving a few unit cells can affect the crystalline solid reactivity. In the case of monocalcium aluminate hydration in the presence of a calcareous filler, it was possible to observe that an increase of carbonate lattice disorder caused a decrease of induction time and an increase of hydration rate of CA* * Cement Chemists' Notations: A = Al2O3; C = CaO; C = CO2; H = H2O - CaCO3 mixture and a change of developed phases mutual ratios.