The influence of lithium carbonate on phase composition of calcium aluminate cement paste

摘要

In the paper the results of experiment are presented which main goal was to examine the influence of lithium carbonate addition on the phase composition development of calcium aluminate cement. The study shows that the lithium carbonate has the significant influence on the reaction rate of alumina cement components and water. Very little addition of admixture (as 0.03%) causes the X-ray identifiable effect on calcium aluminate hydrates after 15 minutes mixing with water. Hydration products in the presence of lithium carbonate differ from the phases that occur in the case of alumina cement binder without the admixture. The article shows the test results for the monocalcium aluminate. A significant impact on the course of the hydration reaction is also confirmed by the results of calorimetric look into alumina cement and monocalcium aluminate paste.