Marine Rock Bolting – Marine Grade Meshes
In coastal areas, the durability of galvanized steel is tested by the aggressive nature of the saline environment and may not satisfy the required design life of a project. In coastal areas, the use of polymeric coatings has long been approached with scepticism due to their soft nature and tendency for damage to occur to the coatings during transport, installation or following construction.
In order to achieve a solution to provide a design life of up to and in excess of 120 years, an entirely stainless steel solution is recommended.
The benefits of stainless steel mesh are widely accepted; however, the stabilisation system should be considered as a whole. The bar installed into the slope or cliff face provides the primary mechanism for stabilisation and therefore needs to have similar durability characteristics to the mesh on the surface. Although isolation between the rock bolts/soil nails, plates and mesh is possible, the potential for corrosion to occur between dissimilar metals needs to be considered.
By using Stainless Steel DELTAX® or TECCO® STAINLESS mesh alongside DYWIDAG HCR Stainless Bar, DYWIDAG-Systems International can provide a combined slope or rock face stabilisation system entirely from stainless steel, from one source.