Figure 3
From: Concrete-to-concrete shear friction behavior under cyclic loading: experimental investigation

Concrete specimens with (a) smooth (as-cast), (b) medium rough (wire-brushed), and (c) rough (raked) surface roughness.
From: Concrete-to-concrete shear friction behavior under cyclic loading: experimental investigation

Concrete specimens with (a) smooth (as-cast), (b) medium rough (wire-brushed), and (c) rough (raked) surface roughness.