Bond quality assessment method for new-old interface in building restoration
A technology for interface bonding and quality evaluation, which is applied in the directions of measuring devices, permeability/surface area analysis, suspension and porous material analysis, etc. It can solve the problem of loss of bonding ability, poor interface bonding quality, and difficult to accurately respond to repair The actual situation and other issues, to achieve the effect of high reference value
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[0035] The process, principles, and effects of the present invention will be further described in detail below in conjunction with specific embodiments, drawings and specific experiments.
[0036] When this method is implemented, it includes the following steps: a. Remove the sample from the structure to be repaired (when testing the bonding performance between the repair material and the steel, the substrate is selected as steel), and prepare the substrate of the test piece. The center of the base has a hole in the shape of a truncated cone, and the inclination angle of the cone is θ The range of change is 0°~30° (including 0° and 30°); b. Pouring the repair material into the hole in the test piece matrix to form a truncated cone shape and curing is completed. There is room for at least one end of the hole during pouring. The thickness of the new pouring material is preferably 1 / 5~1 / 2 of the hole height; c. Observe the bonding interface of the repair material with a microscope an...
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