A novel modified thermosetting phenolic resin was synthesized by bulk polymerization. The main process of the phenolic resin film formation was studied by tensile shear test. The preparation technology was determined by the investigation of viscosity behavior, gel properties and the data of DSC. The flexible rolled resin film was manufactured at 100±3°C while the moving speed of release paper is at 2 m/min on hot melt machine made in California Graphite Machines Inc. USA. The area weight of the film is 400±20 g/m2, the width of that is 300 mm and the thickness of that is 0.32±0.04 mm.

Steel-concrete interface skid resistance properties have been studied by orthogonal test. Three factors are considered, including glue amount, silicon carbide mesh, and amount of silicon carbide. For each factor, five levels are selected. Through comparative analyses of the experiment results for each factor and the combinations of the levels of the factors, the combination with the optimal interface skid resistance was obtained. The friction coefficient with consideration of glue cohesive force was also determined. The research results provide references for structure strengthening using adhered steel plates and external prestressing.