Waterproof board is a type of anti-seepage material made of polymer as the basic raw material, which can prevent liquid leakage and gas volatilization. The main function of waterproof boards is to prevent liquid leakage and gas volatilization. The main function of waterproof boards in tunnel rock engineering is to prevent seepage and isolation, but also to strengthen and protect.

　　The use of geotextile materials such as filament geotextile and bentonite waterproof blanket in highways, railways, tunnel anti-seepage, airport runways, docks, bridges, and landfill sites.

Refer to GB/T18173.1-2012

参照TB/T3360.1-2014