Modifikace døeva silikony jako potenciálnì perspektivní technologie ochrany døevìných stavebních konstrukcí proti korozi/ Wooden modification by silanols a potentially promising technology to timber protection

Nowadays the resort of the construction industry is in the implementation process of sustainable development policy. In connection with implementation mentioned above the approach to the usage of materials and technologies to protect wood in building structures varies. It is not desirable to degrade wood in structures by toxic biocides etc.., e. g. increasing the amount of non-recyclable or hazardous construction waste. A promising way forward seems to be a modification of wood. Thermal modification of wood is mostly used now (ThermoWood, PlatoWood). Other possibilities of chemical modifications include modifications of wood by acetylation (TitanWood), furfuryl alcohol modified wood (KebonyWood) and silicones as medias for wood modification as well. Silicones are currently used in construction industry mainly to hydrophobize mineral building materials. Recently the efficacy of hydrophobization in modifying the wood with the primary aim of increasing its hydrophobicity, dimensional stability, resistance to damage by fire and biological resistivity is tested. On the base of the presented experimental study in this article, it is possible to tentatively conclude the durability characteristics of wood modified by commercial silicone agent. Wood samples of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies L. Karst) were modified by a protective product with the commercial name „Lukofob 39“ and were tested for resistance against biological and abiotic degradation factors.