Abstract
The Eastern Wu tomb in Shangfang Town, Nanjing City is a brick tomb of the Six Dynasties in China, which is very famous for its big scale and complex structure. After being excavated, biodeterioration occurred on the interior wall of the tomb chambers due to the fluctuation of environmental factors, which threatens the cultural value of this architectural heritage. Biodeterioration is highly related to the mild temperature and the high humidity in the tomb chamber and condensation on the wall surface. To reduce biodeterioration in the Eastern Wu tomb, environment monitoring was carried out and the effect of the current protective shed on the Eastern Wu tomb was examined. The hygrothermal transfer model of the protective shed was developed to evaluate the effects of the optimization of the protective shed for reducing the condensation on the wall surface. The results show that condensation on the wall surface of the site was reduced by 53% in a year after the functional space utilizing solar energy was added to the protective shed.
Highlights
The Eastern Wu tomb is located in Shangfang town, Nanjing city, China and was discovered in December 2005
Biodeterioration is highly related to the mild temperature and high humidity in the tomb chamber and the condensation on the wall surface [35]
Biodeterioration is highly related to the mild temperature and the high humidity in the tomb chamber and the condensation on the wall surface
Summary
The Eastern Wu tomb is located in Shangfang town, Nanjing city, China and was discovered in December 2005. The tomb is surrounded by mountains and is under a protective shed built in May 2007. The protective shed is enclosed by 0.24 m-thick brick walls made of brick and slope roof made of corrugated steel sheets. After the protective shed construction was finished in 2007, a lot of mold-like microbial species grew on the walls of both the front and back tomb chambers. The brick is under destruction and the pattern on the brick surface is obviously blurred or disappeared as Figure 3b shows
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