干旱区生态环境知识资源中心(Arid): Rising Damp: The Rising of Moist Earth-Air in the Mogao Grottoes, China

Arid

DOI	10.1080/00393630.2024.2339721
	Rising Damp: The Rising of Moist Earth-Air in the Mogao Grottoes, China
	Li, Hongshou; Li, Fei; Wang, Shunren; Gong, Yipu; Xue, Ping; Wang, Xiaowei
通讯作者	Li, HS
来源期刊	STUDIES IN CONSERVATION
ISSN	0039-3630
EISSN	2047-0584
出版年	2024
英文摘要	Usually, the term 'rising damp' refers to capillary water rising from the ground which may damage architectural heritage. In this work, the essence of rising damp in extremely arid regions and its driving force are revealed based on experiments monitoring the relative humidity (RH) and atmospheric pressure (AP) in the Dunhuang Mogao Grottoes. The air in the vadose zone, the unsaturated region between ground level and the top of the water table, is here referred to as 'earth-air'. When the AP rises, the earth-air is compressed, and atmospheric air enters into the soil. Then, when the AP drops, moist earth-air expands and rises into the structure. The RH in the soil is thus negatively correlated with the AP, yielding a correlation coefficient of up to -0.94. Under the action of this long-term dry-wet alternation, the salt present in the building near ground undergoes repeated cycles of crystallization and dissolution, resulting in efflorescence and a deterioration zone. Therefore, the deterioration due to rising damp in extremely arid regions is caused by the rising of moist earth-air rather than capillarity. The height to which it rises is directly proportional to the amplitude of the daily AP fluctuation and thickness of the vadose zone, exhibiting a bimodal fluctuation pattern on a daily scale. The discovery of this mechanism of rising damp provides a scientific basis for preventive conservation interventions.
英文关键词	Rising damp deterioration zone earth-air atmospheric pressure capillarity
类型	Article ; Early Access
语种	英语
收录类别	SCI-E ; AHCI
WOS记录号	WOS:001216925700001
WOS关键词	WATER-MOVEMENT ; BUILDINGS ; CO2
WOS类目	Archaeology ; Art ; Chemistry, Applied ; Chemistry, Analytical ; Spectroscopy
WOS研究方向	Archaeology ; Art ; Chemistry ; Spectroscopy
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405686
推荐引用方式 GB/T 7714	Li, Hongshou,Li, Fei,Wang, Shunren,et al. Rising Damp: The Rising of Moist Earth-Air in the Mogao Grottoes, China[J],2024.
APA	Li, Hongshou,Li, Fei,Wang, Shunren,Gong, Yipu,Xue, Ping,&Wang, Xiaowei.(2024).Rising Damp: The Rising of Moist Earth-Air in the Mogao Grottoes, China.STUDIES IN CONSERVATION.
MLA	Li, Hongshou,et al."Rising Damp: The Rising of Moist Earth-Air in the Mogao Grottoes, China".STUDIES IN CONSERVATION (2024).