Экспериментальные исследования электроизоляционных и гидроизоляционных свойств полимерцементных растворов на основе карбамидной смолы

Abstract

RU: В статье представлены результаты экспериментальных исследований электроизоляционных и гидроизоляционных свойств полимерцементных растворов на основе карбамидной смолы. Разработана методика и предложена модель исследования полимерцементных составов и конструкций с их применением. Полученные экспериментальные данные подтверждают преимущества полимерцементных растворов при строительстве и восстановлении зданий и сооружений эксплуатируемых в условиях обводнения и периодического воздействия электрического тока.

EN: The article presents the results of experimental researches of electically insulating and waterproofing properties of polymer and cement mortars based on urea resin. A method of research of polymer and cement compositions and constructions made from them were developed. As a investigated construction adopted a fragment of a brick wall based on a polymer and cement mortar with one plastered surface. Additionally were investigated constructions of the brickwork based on a polymer and cement masonry mortar, cement-sand masonry mortar, and cement-sand masonry and plaster. The imitation of maintenance of these constructions in atmospheric conditions with giving to ground and constructions of varying humidity were produced. Also it was produced a periodic action of a direct electric potential onto constructions by means of special electrodes placed in the soil and on the constructs themselves. The experimental data show that the current intensity in the brick constructions based on cement-sand mortar greatly exceeds the current intensity in the constructions based on polymer and cement mortar. This fact clearly indicates onto advantages of polymer and cement mortars in construction and restoration of buildings and structures operating in conditions of periodic flooding and the impact of electric current.