Influence of Mineral Admixtures on Corrosion Inhibition Effect of Nitrites

Table 1

Oxide composition of the fly ash and slag.

Item	Fly ash	Slag
Composition (mass % as oxide)
Calcium oxide (CaO)	7.66%	1.8%
Silica (SiO2)	32.95%	57.2%
Alumina (Al2O3)	13.99%	20.0%
Iron Oxide (Fe2O3)	2.91%	9.1%
Magnesium oxide (MgO)	34.5%	5.1%
Sulfur trioxide (SO3)		1.7%