Mechanical Properties and Durability of High-Performance Concretes Blended with Circulating Fluidized Bed Combustion Ash and Slag as Replacement for Ordinary Portland Cement

Table 2

Chemical compositions of cement, fly ash, CFBC ash, and CFBC slag (wt. %).

Sample	SiO2	Al2O3	Fe2O3	CaO	SO3	MgO	K2O	LOI (%)
Cement	20.84	4.14	3.35	65.88	2.80	1.89	0.60	—
Fly ash	47.50	30.37	3.97	5.83	0.93	0.48	0.69	3.43
CFBC ash	37.78	32.76	5.42	10.19	4.35	1.93	0.98	6.09
CFBC slag	40.29	32.11	3.77	10.27	3.89	1.43	1.05	6.52