Properties of steel foundry electric arc furnace dust solidified/stabilized with Portland cement

The computer program Tailings-DEM™ modeling the strength properties of Musselwhite tailings matrices

“…The retardation or suppression of cement hydration adversely affects strength development. In the presence of lead, hydration occurs at a much slower rate than the reference [27], and the UCS values tend to decrease. Coating of tri-calcium silicate 3CaO.SiO2 (C3S) of cement with Pb or complexation of Pb [25], [28], [29] might have retarded the hydration of cement.…”

“…Several researchers reported that Zn retarded setting through formation of this low permeability membrane of calcium hydroxyzincate (CaZn2(OH)6.H2O) around the cement particles [23], [24], [25], [26], and Pb acted as a retardant agent by inhibiting the cement hydration [27]. The formation of a membrane around cement particles with the precipitation of calcium hydroxyzincate (CaZn2(OH)6.H2O) can prevent water and ion transport needed for cement hydration.…”

The environmental impact evaluation and testing of sustainable inorganic binders: A green alternative to ordinary Portland cement

“…However, in previous studies, the ratio of cement was much higher than hlime, hence; cement was used as the dominant binder in the mixtures. In the present study, CEMI-hlime 1:1 to 1:9 ratios were tested instead of 2:1 to 9:1 ratios as widely tested by many other researchers [16], [17], [18], [19]. Therefore, a weak strength development was expected due to the lack of cementitious characteristics in hlime.…”

Solid Waste Utilization in Foundries and Metallurgical Plants

“…are deposited on waste dumps. The latter can be utilized after granulation process as a road building material whereas furnace dusts are treated in recirculation into furnace systems decreasing their final quantity and improving utilization of some important elements, mainly iron (Fiore et al, 2008;Lee & Song, 2007;Salihoglu et al, 2007;Fu & Zhang, 2008).…”