electro osmosis one application carries dehydration to an extent that it weakens a structure for demolition by significantly dehydrating its structural material a durable dimensionally stable anode is affixed to the structure and attached to a wire from a dc power supply the anode is composed of a valve metal substrate with a semiconductive coating of a precious metal cermet or ceramic connection to a cathode through the power supply completes the circuit a dc voltage is applied to the concrete structure by cycling a pre specified pulse train from the power supply one pulse train consists of an initial positive pulse followed by a shorter duration negative pulse and ends with a short off period before the pulse train is reinitiated the cycle continues until the porous material has been determined to be sufficiently treated application_number US 14087502 A description refer to fig1 in a specific embodiment the present invention facilitates electro osmosis by inserting durable dimensionally stable anode wires 5 such as the durable dimensionally stable anode wires that may be produced via the process detailed in the 39 169 patent noted above into the concrete 3 that may be part of a structure comprising porous material for example a concrete structure to be demolished and places cathode rods 7 in the soil i directly outside of that structure the durable dimensionally stable anode wire 5 is embedded in the concrete 3 e g using mortar and the cathode rod 7 typically a.