Ice-concrete abrasion study

Abstract The ice drift velocities up to 2 m/s in the Sea of Okhotsk can cause severe abrasion due to mechanical contact with offshore concrete structures. The abrasion process of concrete includes cement paste and aggregate particles removed from the concrete surface. Testing procedures in the ice abrasion laboratory of Far Eastern Federal University coupled to a numerical simulation model of ice sheet-structure contact are described. The different scale effects of the wear in the case of ice-structure interactions are discussed and hydraulic pressure at ice-concrete contact is proposed as con-crete abrasion mechanism at impact/crushing on structures as well as sliding or scratching pressure in the NTNU con-crete ice abrasion laboratory. Keywords: offshore, ice, concrete, abrasion, ice flow, interaction, test, calculation.