The results indicated that the setting time increased and the maximum temperature decreased as the liquid-to-solid ratio increases. The hydrated product was mainly composed of magnesium potassium phosphate hexahydrate, which was not affected by the liquid-to-solid ratios. Besides, magnesia was also found because it was an obvious excess of the hydrated reaction. The compressive strength decreased as the liquid-to-solid ratios increase possibly because of the higher porosity caused by the superfluous liquid. According to the performed study, results indicated that the properties of MPCBC could be adjusted by changing the liquid-to-solid ratios. The properties of MPCBC could be adjusted by controlling the liquid-to-solid ratios. Non-uniform mixing of the liquid and solid resulted in the different microstructures. Decomposition and volatilization of the liquid caused the low compressive strength.
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