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International Science Conference SPbWOSCE-2017 “Business Technologies for Sustainable Urban Development”, St. Petersburg, Russia, December 20-22, 2017
The factors affecting the durability of insulation systems and products based on mineral fibers are analyzed. It is emphasized that the ratio of acid oxides contained in the charge to the main oxides is the main factor affecting the stability of mineral fibers, as well as the energy intensity of their production. Hypotheses have been put forward and confirmed that the operational resistance of fibers depends on the content of heavy metals (their oxides) in the charge. The determination of the elementary composition of the stone wool samples was carried out using X-ray fluorescence. The conducted studies show that the fibers are safe in terms of radiation indicators, and their operational stability may be due to heavy metal oxides. It is confirmed that the durability of construction systems in which mineral wool products are used as thermal insulation is determined by the properties of mineral wool products, design competence and installation quality.