Influence of organic coatings on the stability of macrodefect-free cements exposed to water

摘要

It is known that macrodefect-free (MDF) cements show instability in water, with swelling and reduction in strength. The weight and dimensional changes of three MDF cements, fromulated from different aluminous cements, during immersion in quiescent tap water, were evaluated. The results show that the cement with the highest Al_2O_3 percentage had the lowest degradation after prolonged immersion. Hence, this material was selected for further analysis.