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

Table 1

Chemical composition of cement and fly ash by weight (%).

Compositions	CaO	SiO2	Al2O3	Fe2O3	MgO	K2O	Na2O	SO3	Loss
Cement	62.05	20.71	4.44	5.12	4.12	0.28	0.11	2.23	0.9
Fly ash	3.27	46.19	36.95	4.43	0.38	1.01	0.38	0.38	3.58