The structure and permeability of cover concrete, as well as the in-situtest method for testing the permeability of cover concrete are researched.
本文研究了混凝土保护层的结构与渗透性，以及混凝土保护层渗透性的现场检测方法。
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IFCO BAT system is a set of in-situtest system, which can gain the pore water pressure of ground and in-situpermeability of soil quickly and accurately.