A quantitative analysis of dicalcium silicate synthesized via different sol-gel methods

V and Cr substitution in dicalcium silicate under oxidizing and reducing conditions – Synthesis, reactivity, and leaching behavior studies

“…The rate of furnace cooling is adapted from the oxidizing furnace as shown in Fig. 1(b) and is also used for synthesis under reducing conditions to rule out the different cooling rate effects on the end product (Jawad Ahmed et al, 2022).…”

“…It would originate due to a little hindrance in sintering reaction between incomplete Si-O-Si network, wollastonite, and calcium oxide due to reducing condition. The complete conversion of reactant into C 2 S in sol-gel synthesis partially requires a sintering reaction between the CaO and Si-O-Si network at high temperatures under oxidizing conditions (Jawad Ahmed et al, 2022). As the Si was replaced with 2, 4, 6, 8, 10, 15 mol% Cr under reducing conditions, the β-C 2 S (ranging from 58.3 to 71.0 wt%) was the only C 2 S polymorph that formed during cooling.…”