Feasibility study on conservation of water-saturated archaeological wood in earthen sites by hot air with different humidity

The biggest challenge for the long-term conservation of water-saturated archaeological wood in earthen sites is microbial reproduction. This study examines the impact of hot air with varying humidity in conserving water-saturated archaeological wood in earthen sites. The experimental work prioritizes disinfection efficiency and the safety of cultural relics. Different representation methods have been employed, including testing of disinfection rate, shrinkage rate, and moisture content, as well as the utilization of techniques such as Fourier transform infrared spectroscopy, thermogravimetric analysis, and nitrogen adsorption. By employing these approaches, we investigated the appropriate humidity range and feasibility of using hot air disinfection as an approach for protecting water-saturated archaeological wood in earthen sites. This study provides valuable insights and references for the conservation of water-saturated archaeological wood in earthen sites.