The normal mortar
flow was determined according to the standard method of GB/T
2419 [25]. The compressive strength of mortar prisms at the ages
of 7 and 28 days were measured according to the standard method
of GB/T 1767 [26]. The hydration heat release rate of cement paste
whose water to cement ratio is 0.3 was determined in accordance
with the standard method of GB-T 12959 [27].