Ice adhesion behavior of heterogeneous bituminous surfaces

The phenomenon of icing, and the derived processes for its mitigation, are great importance in many applications, ranging from transportation energy to food refrigeration. This has been studied mostly with respect manifestation on rigid, homogeneous surfaces, soft materials being topic more recent investigations. Although, icing often occurs substrates that chemically mechanically heterogeneous, e.g., widely used asphalt concrete, which consists rigid aggregates embedded bitumen, date, ice adhesion behavior such needs be better understood. Here, we study stresses—the stresses necessary remove ice—of blocks heterogeneous materials, juxtaposing two main constituents (modeled by Macor®) bitumen-Macor® composites. We show shear stress Macor® is almost twice as large whereas normal components composite a similar range. synthesize consist bitumen stripes find increasing width leads lower stress, while stripe direction applied force minor effect. Based our findings, then coat most ice-adhesive component (Macor®) thin superhydrophobic coating this can reduce substrates. also formed half Macor®, if first second (material order), measured less compared reverse case material order.