The research of moisture sorption characteristics in mineral wool under the Vietnamese climate conditions

Abstract

Abstract The article discusses the characteristics of the sorption wet steam of mineral wool in laboratory experiments, necessary to determine the change in its mass in conditions of high humidity of the environment, already a country with a tropical climate. The results can be used in new construction and renovation of facades of buildings in Vietnam. A feature of the application of thermal insulation materials in the system of thermal insulation of facades of buildings in different climatic conditions is a factor in the durability of the materials, etc. The climatic conditions of Vietnam have significant features such as high average temperatures, humidity, rainfall, and a long rainy season. These parameters affect the durability and thermal insulation qualities of materials in the thermal insulation system of building facades. The characteristics of moisture resistance of mineral wool, which are used in the systems of ventilated facade construction for thermal protection of buildings in the world in Russia, are considered. In the laboratory evaluation experiments made mineral wool sorption characteristics: extract samples under direct contact with different degrees of relative humidity for a month. This test simulates the effects of a tropical climate in the mineral wool in assembly or during operation, when the protective layer is damaged. The result of the experiment shows the dependence of the degree of sorption of humid vapors of mineral wool on the value of the humidity of the air environment and the time of its direct contact with humid air. According to the results of such experiments can make the choice of building types and technologies insulating materials suitable for the climatic conditions of the Vietnamese during the repair and construction works.