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The paper presents the results of research on technical sulphur and sulphur-containing wastes as one of the effective binders in concrete production, allowing to create materials with high indicators of physical and mechanical properties and chemical resistance in saline and acid solutions. Mycelial mushrooms were used in experiments as microorganisms and various combinations of citric acid and hydrogen peroxide as pure chemicals, possible bio-corrosion agents. The result revealed that sulphur composites are fungus-resistant materials, but they are confirmed to be bio corrosive in the presence of external contaminants. Dependences of changes in materials resistance on the concentration of substances included in the aqueous solutions of metabolic products have been determined. Studies aimed at increasing the bio-corrosion resistance of sulphur composites have been carried out. The additives that impart fungicidal properties to sulphur composites have been identified: M-dinitrobenzene, biphenyl and tetrabromocresol. Tests have shown that sulphur composite compositions with basic copper carbonate and dimorpholine sulphide additives can be used in some buildings where the building structures do not have contaminants that serve as nutrient media. [ABSTRACT FROM AUTHOR]