(1) The interface bending tensile, diagonal shear, tensile and splitting tensile tests are the main testing methods for evaluating the interface bonding performance.
Among them, the interface bonding strength measured by oblique shear test is the highest, reaching about 27 MPa; The strength obtained from the pull-out test is relatively low, usually not exceeding 2.
5 MPa.
The interface failure mode is closely related to the testing method and substrate surface treatment method: samples without surface treatment mainly suffer from interface failure; After surface treatment, the damage location shifts more from the interface to the repair material or the interior of the matrix concrete.
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