Figure 10From: 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 five days. a. The forming of minor calcium carbonate re-crystalline on the surface. b. The forming of minor calcium carbonate re-crystalline, calcium silicate and aluminum calcium silicate hydrate crystal in deep layer.Back to article page