Effect of Atmospheric Pressure on Performance of AEA and Air Entraining Concrete

Table 2

Physical properties of cement.

Specific area (m^2·kg^−1)	Fitness (%)	Density (g·cm^−3)	Water requirement of normal consistency (%)	Stability	Setting time (minimum)
					Initial setting	Final setting
390	3.7	3.21	23.2	Qualified	185	270