Low Temperature Synthesis of Belite Cement Based on Silica Fume and Lime

Figure 10

XRD patterns of (lime + BaCl₂)/silica mixture hydrothermally treated at 110°C for 5 hours and then calcined for 3 hours at (a) 600°C and (b) 700°C (where C is calcite, P is portlandite, G is -C₂S, and B is -C₂S).