The paper presents the methods for controlling vertical displacements on a reinforced concrete slab. To take the measurements we used geodetic instruments (level, total station and laser level) as well as non-geodetic instruments (inductive transducers). Theoretic displacements at the crack are calculated in accordance with European regulations for reinforced and pre-stressed concrete. Many objects or constructions must be tested before applied. For many years on Faculty of Civil Engineering, Maribor, Slovenia, are performed structures loading tests for analysis of materials.
