Effects of Blended-Cement Paste Chemical Composition Changes on Some Strength Gains of Blended-Mortars

Table 4

7th-day chemical compositions of marble and brick powder-blended and CEMI42.5N cement paste samples.

Codes of pastes	7th-day chemical compositions (%)
	CaO	SiO2	Al2O3	Fe2O3	MgO	SO3	K2O	Na2O	LOI	Alkali
CEMI42.5MP6P	49.35	16.22	4.34	3.35	6.38	2.40	0.24	0.33	17.16	0.49
CEMI42.5MP20P	54.65	14.34	3.26	3.36	1.84	2.35	0.22	0.20	19.03	0.35
CEMI42.5MP21P	55.59	14.30	3.06	2.34	2.08	2.65	0.30	0.18	19.10	0.38
CEMI42.5MP35P	54.24	11.60	2.98	2.34	1.65	3.52	0.33	0.25	22.95	0.47
CEMI42.5BP6P	52.36	17.26	4.10	4.13	1.07	3.24	0.25	0.24	17.23	0.41
CEMI42.5BP20P	46.44	19.98	6.29	5.24	1.45	3.84	0.63	0.29	15.62	0.71
CEMI42.5BP21P	44.36	19.36	6.48	5.17	2.86	4.80	0.45	0.25	15.59	0.55
CEMI42.5BP35P	42.67	21.78	6.94	6.29	2.08	5.70	0.55	0.30	13.67	0.66
CEMI42.5NP (Reference)	48.12	17.68	4.59	4.29	2.95	3.87	0.25	0.61	16.95	0.78