A Rapid Setting TTCP-DCPD Cement. Study of the Setting Reaction as a Function of Time
The progression of the setting reaction of a tetracalcium phosphate (TTCP) –dicalcium phosphate dihydrate (DCPD) rapid setting cement was investigated as a function of time. Compressive strength and extent of conversion to hydroxyapatite (HA) were obtained at different incubation times. The results indicated a rapid development of both strength and HA conversion in the early stages of the reaction, which slowed down after 4 h, presumably as a result of HA formation on the surface of the reactants. This hypothesis was supported by scanning electron microscopy examination of cement fracture surfaces.
Panjian Li, Kai Zhang and Clifford W. Colwell, Jr.
E.F. Burguera et al., "A Rapid Setting TTCP-DCPD Cement. Study of the Setting Reaction as a Function of Time", Key Engineering Materials, Vols. 284-286, pp. 15-18, 2005