Manufacturing of Ecofriendly Bricks Using Microdust Cotton Waste

Table 2

The properties of cotton waste (CW), lime powder waste (LPW), and cement [12].

Properties	CW	LPW	Cement
SiO2 (%)	29.42	0.26	19.20
CaO (%)	24.35	56.19	52.00
MgO (%)	0.58	—	1.00
Al2O3 (%)	13.89	0.25	3.70
Fe2O3 (%)	0.46	0.30	0.16
SO3 (%)	—	—	2.80
Na2O (%)	—	—	—
K2O (%)	—	—	0.27
Cl (%)	—	–—	0.006
Loss on ignition (%)	29.40	42.65	8.20
Density	0.5	2.67	3.00
Specific surface area (m^2/kg)	—	145	500
Compressive strength for 28 days (MPa)	—	—	48