Sodium Sulphate Effect on Cement Produced with Building Stone Waste

Table 7

Chemical analysis results, Blaine values, and specific weight of blended cements.

	Cements codes										TS EN 197-1
	RC	DC1	DC2	DC3	AC1	AC2	AC3	MC1	MC2	MC3
Chemical constituents (%)
SiO2	19.20	30.99	37.42	42.40	27.16	28.19	30.61	23.71	22.08	20.58
Al2O3	4.23	5.48	5.38	5.22	6.50	6.71	8.1	5.7	5.33	5.08
Fe2O3	3.44	5.82	5.86	5.89	6.96	7.96	9.8	5.7	5.22	4.86
CaO	58.6	51.8	50.0	48.4	52.0	51.2	48.5	54.6	55.2	55.6
MgO	3.00	3.81	3.19	2.45	4.53	4.20	4.1	4.2	3.46	2.70
SO3	3.18	2.37	2.18	1.97	2.41	2.81	2.1	2.6	2.41	2.30	<4.0
Free CaO	0.89	0.50	0.44	0.34	0.56	0.44	0.4	0.7	0.54	0.40
CI	0.001	0.004	0.005	0.004	0.005	0.013	0.005	0.006	0.007	0.007	<0.10
Property
Specific density (g/cm^3)	2.86	2.44	2.26	2.10	2.64	2.60	2.44	2.66	2.55	2.50
Blaine values (cm^2/g)	2733	4677	5778	6686	3981	4398	4115	3696	3993	3999
Mixing water (g)	235	272	285	337	261	275	286	250	262	285
Mixing water (%)	52	60	63	75	58	61	64	56	58	63