This article presents the results of experimental research on the restoration of the concrete surfaces of samples. It determines the influence of technological factors, namely, the spatial position of the restoration surface, its humidity, and the time of the repair mortar vibration on the adhesion strength of the structural layers. Restoration of a series of concrete samples was carried out with a high-flow modified concrete mixture by the method of embedding in the formwork. After the full set of the strength of the repair solution, the average indicators of the adhesion strength of the restored layers to the base of the structure were determined.