The invention relates to a method and a composition for improving properties of road coatings comprising asphalt (other names: asphalt-concrete, asphalt for road surface, road cover asphalt, asphalt macadam), and/or bitumen (other names: asphalt mastic, bituminous mastic, asphalt-based sealant, bitumastic sealer, sealing compound, asphalt adhesive compound, asphalt coating compound, roof mastic, asphalt). Such materials are known, and often used in road construction and in industry. However, these materials have relatively short durability. These materials quickly decay on the surface of roads due to environmental influences. The proposed method allows slowing down degradation of the road coating. It is achieved by adding a relatively small amount of antibacterial/antimicrobial additive into the mixture intended for covering and/or repairing the road surface. The composition and the method are also suitable for other industrial applications.
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