Durability of galvanised fasteners in timber construction
Abstract
Abstract This article describes the possible corrosion conditions for fasteners in timber outdoor constructions. In the case of fasteners (e.g., timber screws), a distinction must be made between corrosion outside the timber and in contact with the timber. In case of contact with timber, the influence of timber constituents (acetic acid and timber protection agents), which are effective when the moisture content of the timber is high, must be taken into account. In the weathered area, the corrosion exposure and the corrosion of zinc coatings in contact with timber can, therefore, be higher than in pure atmospheric corrosion. In nonweathered areas, it may be reversed due to possible concentration of pollutants outside the timber and insufficient timber moisture. Recent research results are explained using timber screws as an example. Furthermore, the requirements for zinc coatings for fasteners in timber construction are presented on the basis of the current standardisation.
Reference
Ulf Nürnberger; Esref Cenk Köse. (2020). Durability of galvanised fasteners in timber construction. Materials and Corrosion. https://doi.org/10.1002/maco.201911489
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