Relationship between Mechanical Properties and Microstructure of Ancient Tomb Bricks Unearthed from Tsinghua Garden
HAN Jianguo
Abstract：Macro and micro performance of ancient tomb bricks unearthed from Tsinghua Garden covering a history of 1 600 years,including appearance,mechanical properties,porosity,chemical and mineral composition,were analyzed.The results show that from the Jin Dynasty to the Qing Dynasty,there is no significant change in the brick-making technology and brick quality.From the Qin Dynasty,red brick and blue brick was produced universally in China.Compared with red brick,the blue brick has smaller volume density,larger porosity and higher strength,resulted from the increased degree of sintering,higher degree of calcium carbonate decomposition and illite crystal water vaporization,and the increased amount of anorthite and glass phase formation.
Keywords：ancient tomb brickTsinghua Gardenmechanical strengthchemical compositionmineral composition
Publication Date：2025-01-27
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 82-87,94 )