Fig. 3From: Fundamental Discrepancy of Chemical Reactivity of Tricalcium Oxy Silicate (alite), Dicalcium Silicate (Belite), and Their Polymorphs: A Density Functional Theory StudyUnit cells of crystal structures with optimized atomic positions of a α-C2S, b α’H-C2S, c α’L-C2S, d β-C2S, e γ-C2S, f R-C3S, g M3-C3S and h T1-C3S.Back to article page