Extraction of cylindrical samples of concrete and compression tests

Concrete samples are taken by continuous core drilling in the structural elements under investigation such as walls, pillars, beams or foundations, using a core drilling machine equipped with a thin-walled diamond crown. Each sample is identified, noting the specific sampling point and any visible irregularity. The specimens are then subjected to compression tests in a state-authorized laboratory to determine their compressive strength.
Reference standards: UNI EN 12390-3:2019; UNI EN 12504-1:2021.