Dudin A. The mechanism of influence of alternating leakage current and high-voltage on the flooded concrete, reinforced-concrete and stone constructions

Object – a cement stone, concrete, reinforce-concrete and stone constructions of buildings of railways, electrified by alternating current; goal – disclosure of the mechanism of influence of alternating current and high-voltage tension on concrete, reinforce-concrete and stone engineering structures of railways for the increase of efficiency of their protection from electro-corrosion; methods – influence of current was designed on original methods by the specially engineered and constructed laboratory settings and sensors, physico-mathematical properties of concrete were determined by standard methods, phase composition of cement stone – by a radiograph phase analysis, electric descriptions of concrete – by specially developed methods and laboratory settings, description of the electric field propagation – by digital multimeter and special sensors; innovation – it is set that electro-corrosive destruction of cement stone and concrete is caused by one-side conductivity in the electric field of hydrosilicate gel, the electromigration and diffusive transfer of ions, electrocorrosion of armature is carried out by the removal of cations of Fe2+, followed by the removal of free electrons from the armature, a quantitative description of basic processes and mechanisms of electro-corrosion of concrete is presented, dependence of coefficients of diffusion of concrete is set on his brand of the W and V/C watertightness , on the basis of which classification of concrete based on permeability was improved, influence of the protracted action of cyclic alternating and running water on a concrete is set; results – mechanisms of influence of alternating current of leakage and high-voltage tension on watered constructions; the scope of use –corrosion protection of buildings and constructions.