...-concrete interface; parametric studies (scale effect, bond percentage effect, surface morphology effect, free spacing between encapsulating material effect and displacement rate effect); and a relationship between peak and residual shear strength. The following preliminary conclusions could be reached...

... that even very thin coatings (~0.2 mm) of mineral infill can significantly reduce peak shear strength. More interestingly, at this thickness the coating can cause either a decrease or increase in residual shear strength. A positive correlation was established between the hardness and the residual friction...

... shear strength test, the values of the shear load and shear displacement were recorded. 3 RESULTS The shear strength test results were represented on shear stress - shear displacement and shear strength - normal stress diagrams. Whenever possible, both the peak and the residual shear strengths were...

... the bond strength, the residual shear strength, the shear slippage where bond strength occurred and the shear slippage where residual shear strength occurred on the cable bolt performance was studied. The results show that the bond strength played a significant role in determining the maximum pull-out load...

... strength rock joint shear displacement shear test Upstream Oil & Gas water content residual shear strength shear strength surface roughness filler Reservoir Characterization roughness compaction reduction rock surface Thickness direct shear test shear resistance alignment...