Figure 1From: Research on the modification of two traditional building materials in ancient China XRD spectra of ginger nut calcined at 700°C ~1400°C and comparison of products (1-CaCO 3 ;2-SiO 2 ;3-CaO;4-β-CaSiO 3 ;5- Ca 2 Al 2 SiO 7 ). Back to article page