Calibration of Sonreb Curve by Validating it with Compressive Strength

The Sonreb curve is a widely used non-destructive testing method for assessing the integrity and strength of concrete structures. However, correlating it accurately with concrete compressive strength remains a challenge. This research paper presents a calibration approach that establishes robust relationship between the Sonreb curve and concrete compressive strength. A comprehensive dataset of Sonreb curve measurements and corresponding compressive strength values is collected from diverse concrete specimens, considering various mixtures, curing conditions, and ages. Advanced statistical techniques are employed to conduct a systematic analysis, including multiple regression analysis, to identify influential factors and establish an accurate relationship. The proposed calibration model is validated against an independent dataset, demonstrating its effectiveness with a high correlation coefficient and low prediction errors. The calibrated Sonreb curve offers non-invasive and cost-effective assessment of concrete strength, enhancing quality control and decision-making processes in construction. This research contributes to the advancement of non-destructive testing techniques and the overall quality of concrete structures.