CONCRETE PLACEMENT WORK BY STABILIZER LIQUID METHOD

摘要

PURPOSE:To improve the bonding between a steel part and concrete by a method in which current is flowed between an anode inserted into a stabilizer liquid and a custom-made steel part as a cathode immediately before the placement of concrete and clay particles adhered to the steel part are removed. CONSTITUTION:An iron bar cage 5 is set in an excavated trench 1, and then an electrode 7 is inserted into the cage 5 immediately before the placement of concrete. The electrode 7 is connected to the plus side of an external DC power source device 8 and a partition iron plate 3 and cross bars 4 are connected to the minus side of the power source device 8. Current of 5A/m<2> or more is then flowed between both the electrodes so that clay particles adhered to the iron plate 3 and the cross bars 4 are separated due to the formation of the film of water as a diaphragm between iron bars 3 and the cross bars 4. Afterwards, concrete is placed and hardened.