Open AccessBiostability of Facade Systems
Author(s) -
Tatiana Elchishcheva,
Viktor Afonin,
I. V. Erofeeva,
E A Zaharova,
Alexander Atmanzin
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1079/6/062031
Subject(s) - facade , mortar , masonry , corrosion , materials science , moisture , composite material , environmental science , civil engineering , engineering
Protection of buildings and structures made of stone materials from biological corrosion is relevant for all groups of buildings, especially in wet and wet modes of operation of external enclosing structures and in conditions of pollution from industrial emissions. The presence of salts in raw materials, mixing water and technological additives to improve the properties of the mixture in the manufacture of building materials, masonry and plaster mortars causes the transfer of salts to the facades of buildings. Due to the hygroscopic effect, salts attract atmospheric moisture, and waterlogged material is a favorable environment for the development of spores of various types of filamentous fungi. The combined effect of salt and biological corrosion reduces the strength properties of materials. Destruction of paint and plaster layers disrupts the appearance of building facades. The study investigated the biological resistance of samples of facade plastering systems to the action of test cultures of filamentous fungi. The fungicidal and fungicidal properties of facade plastering systems of various compositions have been studied. The influence of different types of primer, filler and color on fungal resistance, fungicide and physical and mechanical properties of facade coatings was revealed. It was revealed that multilayer facade systems, consisting of materials with high vapor permeability, water-repellent properties and biostability, provide joint protection against salt exposure and the influence of biological pollution. The aesthetic qualities of the facade surface are ensured by decorative plastering or painting.