Non-destructive testing methods for building structures involve ultrasonic experiments. They make it possible to accurately determine the strength of concrete material, not only in the surface layers, but also throughout the entire thickness of the structure.
The method is based on the relationship between the strength of the material and the speed with which high-frequency acoustic waves propagate in it. To determine the required parameter, it is necessary to carry out a number of special computational actions that concern two parameters:
- the strength of concrete and the propagation time of the waves;
- the speed of movement of the ultrasonic vibration and the strength of the material.
The following acoustic methods of testing building structures are used during the inspection:
- through ultrasound sounding, in which the sensors are installed on opposite sides of the structure;
- surface sounding, respectively, the sensors are installed on one side.
Ultrasonic methods of testing building structures have a number of significant advantages. Among them are the speed of work, the light weight of the equipment used and the ability to conduct tests at any time, even if the outside temperature is negative up to -10 degrees.
In order for the obtained data to be reliable, the specialist who conducts such checks must be highly qualified, as well as have practical experience.
