Geo-components are manufactured from steel, galvanized steel and polymers commonly take the form of reinforcing meshes, straps or strips for high quality erosion and sediment control systems. Prediction of durability of zinc/zinc alloyed coatings can be done on the basis of knowledge of their thickness and zinc/zinc alloyed corrosion rate in soil. Required durability of these systems varies from 20 to 120 years depending on soil corrosivity. The paper gives some data for short exposure of zinc/zinc alloyed coatings in soil. The performed tests show that the corrosion attack of zinc coating in soil is very non uniform and locally may be totally corroded after few years. In such case the service-life of geosystems may be significantly lower that required according to standard and producers specification. Performed tests show the additional protection by PVC coating may be damaged due to installation of geosystems and corrosion of wires may started immediately.Keywords: Geosystem durability, zinc alloyed coating, corrosion in soil
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