Transition to a multi-level system for monitoring concrete strength in critical structures

The article examines the factors hindering the practical use of modern concrete, including high-strength concrete, as well as the difficulty in identifying high-strength concrete and the low utilization rate of actual concrete strength in structures, taking into account the level of failure-free performance. Concrete strength indicators according to Russian and European standards are compared, taking into account the minimum and average strengths that ensure control based on the strength class indicator. Changes to the minimum strength in concrete quality control systems based on statistical control methods are proposed. Key requirements for modern concrete strength control methods in structures are formulated, taking into account accuracy, broad coverage, comprehensiveness, and precision. The conditions for a multi-level control system are developed, ensuring a high level of material reliability in structures by improving the quality of control.