Abstract
In order to reduce the energy consumption and carbon emissions in the calcination process of tricalcium silicate (C3S), we synthesized C3S under a coupled electric-thermal field. Combined with experiments and computer simulations, the effects of electric field on formation kinetics of C3S, C3S crystal structure, electronic structure of CaO and dicalcium silicate (C2S) were systematically investigated. The results of kinetics calculations showed that electric field could improve the conversion rate of CaO and reduce the activation energy of C3S formation. The C3S could be directly obtained under a current density of 0.35 A/mm2 for 30 min at 1300 °C.
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