Field Investigation into Abrasion of Concrete at a Coastal Stepped Revetment: A U.K. Case Study

Although concrete abrasion damage is a major maintenance challenge for coastal structures fronted by beaches with hard coarse sediments, there are no readily available field studies that have measured of known mixtures under defined exposure conditions. The objective this investigation to evaluate the abrasive conditions revetment armour units at Cleveleys on Fylde coast U.K. and examine feasibility using terrestrial laser scanning (TLS) measure in It was found elements exposed macro-tidal environment, which experiences significant wave heights vary from 0.42 1.92 m, whilst peak periods range 3.7 6.5 s. beach sediments mean size 26 mm moderately sorted. TLS provides dense point cloud abraded surfaces suitable quantitative assessment field. Based depths durations, rates site varied 3.5 4.5 mm/year, severe concentrated region between high-water springs neaps, wherein highest levels were also during survey. Finally, exhibited polished texture visible craters; thus, mechanism material loss grinding/polishing due rolling/sliding sediments.