基于 Monte Carlo 的混凝土回弹检测测点研究

：Existing domestic and international standards exhibit inconsistencies in specifying requirements for measurement points，and the impact of these variations on the accuracy of test results has been insufficiently studied. To address this gap，experimental investigations and numerical simulations were combined to analyze the effects of rebound measurement schemes with different numbers of measurement zones on the evaluation accuracy of concrete compressive strength，thereby providing insights for standard refinement. First，the rebound hammer test was conducted based on the parts with different degrees of strength dispersion in the actual project. Then，the accuracy difference between the proposed measurement point scheme and the traditional measurement point scheme was verified through sampling tests，and benchmark improvement suggestions were given. Finally，the rebound hammer test was performed by Monte Carlo，and the estimation accuracy assurance rates for various testing area schemes under different discrete conditions was calculated. The results indicate that the proposed 3×3（9）scheme and the five standardized schemes—ASTM-10，ISO-9，Chinese Industry Standard-16，12（10），and 10（8）—exhibit comparable effectiveness in concrete strength estimation. When the dispersion of concrete complies with production standards，the strength estimation deviations for 15， 10，and 9 testing areas can be controlled within ±5 MPa. At critical inspection‐level of concrete dispersion degree，15 and 10 testing areas ensure overestimation errors remain below 5 MPa.