Survey of the current condition of school buildings made of reinforced concrete and stone elements by taking concrete cores to assess compressive strength, taking masonry cores to estimate compressive strength, taking mortar samples for granulometric analysis and tensile strength assessment, impact measurement tests, magnetic reinforcement detection. Soil material test by granulometric analysis, determination of Atterberg limits (plasticity limit, iquid limit, plasticity index), direct shear test, one-dimensional solidification test.