[Retracted] Experimental Analysis of Mechanical Properties and Durability of Cement-Based Composite with Carbon Nanotube

Table 2

Chemical composition of reference cement.

P-O42.5 cement		Fly ash
Chemical composition	Content	Chemical composition	Content
SiO2	20.93	SiO2	58.31
Al2O3	4.89	Al2O3	29.63
Fe2O3	2.89	Fe2O3	3.65
CaO	60.42	CaO	1.80
MgO	3.56	MgO	0.43
K2O	0.56	K2O	0.11
SO3	2.27	SO3	0.67
Loss	3.60	f-CaO	0.93
—	—	Cl-	0.011
—	—	Loss	4.53