Figure 7From: Research on the modification of two traditional building materials in ancient ChinaSEM photos and EDS spectra of ginger nut and Aga soil calcined in 1000°C. a. The fine crystal aggregate of calcium oxide, calcium silicate and aluminum calcium silicate in calcined ginger nut. b. The fine crystal aggregate of calcium oxide, calcium silicate and aluminum calcium silicate in calcined Aga soil.Back to article page