| 摘要 |
A method for dehydrating capillary materials such as moist walls and/or floo rs of a building structure of masonry or concrete through the principle of electro- osmosis by applying pulsating DC voltage of a specific pulse pattern to primary electrode means embedded in said structure, said primary electrode means (4) forming anode means and secondary electrode means (5) embedded in the ground outside the structure and forming cathode means to be interactive with said anode means, said pulsating voltage having a pulse pattern with a total pulse peri od T, comprised of a positive pulse of duration T+, a negative pulse of duration T -, and a neutral period or pause of duration Tp, wherein: 0.8 T < T+ .ltoreq. 0.98 T ; 0.0 T < T- .ltoreq. 0.05 T ; 0.027 T < Tp .ltoreq. 0.15 T ; and 3 seconds < T .ltoreq. 60 seconds. Suitably, T+ = 0.95 T; T- = 0.01 T; and Tp = 0.04 T
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