In addition, hasn't found what phase of dicalcium silicate. The results from that the temperature in the burning may not high enough or the little stimulation.One of the research () to study the synthesis of dicalcium silicate activated by NaOH and methods of hydrothermal; autoclave; use a period longer than the microwave (4 hours). it was found that the phase of the B-C2S that occur at 800 C.