On the 2nd of August 2018 the sampling of the Centennial Hall, selected as case study in Wroclaw (Poland), was carried out in collaboration with Wroclaw University of Science and Technology. Representative concrete samples have been taken from the Centennial Hall, which was chosen for being a significant monument and an outstanding example of early Modernism.
The main purpose of the material characterization is understanding the properties that define the concrete with which the structure was built as well as identifying the decay processes that could be currently active or that can activate in the near future due to the material composition and environmental conditions to which is exposed to.
The sampling activities were led by the structural engineer and architect Krzysztof Raszczuk. In addition, apart from sampling, several non – destructive tests were carried out such as: ultrasonic tests, electromagnetic tests and sclerometric test (Schmidt hammer method). Ultrasonic method was used for quality control of concrete materials, and detecting damages in structural components. Electromagnetic method was used to assess concrete conditions and identify arrangement of reinforcement. Schmidt hammer measurements was used to check the hardness of concrete surface in area of testing.