Abstract
The effect of the ratio CaO.Al2O3/12CaO.7Al2O3, AlF3 and CaF2 on the formation of the structure and phase composition of clinker minerals of aluminate cement during hydration has been studied. It is found that after 24 hours of hydration, the main hydraulic phases in the studied cement stones are CAH10, C2AH8, AH3. It has been shown that the introduction of AlF3 and CaF2 fluorides reduces the liquidus temperature of the systems and increases the rate of CA formation. Scanning electron microscopy has revealed that the process of hydration of calcium aluminates of cement at low temperatures can be considered as simultaneous reactions.
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