When anticorrosive application is performed on the surface of concrete structures, such as a concrete pit and an underground pit, and content liquid leaks to it by a certain cause, it is a system which detects the liquid leak for discovering the liquid leak from an inside at an early stage.
In a concrete structure especially an existing underground pit, or a waste channel, it is a system which content liquid leaks by a double protective covering outer sheath, and does not permeate underground. It is possible to use a double wall, without reducing the volume of the inside of a pit, or a waste channel extremely by this construction method. Moreover, you can also make management easy by using in combination of a leak detection system.
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