Figure 11From: Research on the modification of two traditional building materials in ancient ChinaSEM photos and EDS spectra of Aga soil calcined in 1000°C after hydration and carbonization for 300 days. a. The forming of a large number of calcium carbonate re-crystalline on the surface. b. The forming of minor calcium carbonate re-crystalline, and a large number of hydrated calcium silicate and hydrated aluminum calcium silicate crystal in the deep layer.Back to article page