Study on preparation and properties of hygroscopic diversion moisture-proof material for underground engineering entrance
FANG Dianwei
XING Zheli
ZHANG Xian
LONG Yangbo
GONG Na
LI Zongxin
Abstract：In response to the problem of condensation occurring at the entrance of underground engineering due to high humidity in an open environment,which leads to poor hygiene conditions at the entrance and affects internal air quality,and traditional dehumidification methods are ineffective,a moisture absorption,diversion and moisture-proof material composed of cementitious materials,hydrophilic and hygroscopic materials,structural reinforcement materials and additives was developed.Through a series of tests,the optimal ratio of the material were determined,and the properties of the material were tested.The results indicated that the fire rating,water absorption rate,water conductivity,bonding strength,and environmental protection performance of the material had all achieved the development goals,the material coating applied to the entrance of underground engineering could sustainably absorb condensed water,which was discharged to the diversion pipe through the internal diversion layer,achieving organized diversion and drainage at the entrance,with good moisture absorption,diversion and moisture-proof performance.
Keywords：underground engineeringentrancemoisture absorptiondiversion
Publication Date：2025-05-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 13-17 )