Pump Concrete Strength Curve Measured By The Rebound Method Research Of Handan

Concrete is one of the most commonly used materials in the building, but due to the different geographical, material, making its quality problems has become an important part of safety monitoring. With the increasing high-rise buildings and large volume of concrete works the amount of pumping concrete used in civil construction, water conservancy and other have occupied a dominant position, so the monitoring of pumping concrete strength is particularly important.The representative selected Handan pumping concrete produced the same curing condition of the test block, rebound method, the establishment of "rebound-carbide-strength of the regression curve through the specimen contrast in the region of pumping concrete rebound the value of compressive strength of the relationship between the curves, can meet the needs of the actual detection can improve the accuracy of test results, in order to better serve to improve the quality of the project. After the calculation of the test data, regression analysis of the special curve of the place of Handan pumping concrete rebound strength. And Handan pumping concrete rebound measured curve and regression equation of the strong local in carbonation depth, and further improve the detection accuracy.After validation of the actual project, Handan commodity concrete rebound strength local curve high accuracy to meet the requirements of the rebound method detection compressive strength of concrete technical regulations JGJ/T23-2001. The Handan pumping concrete rebound measured strong local curve test accuracy, with a larger value for promotion. Promote the application of the curve will improve the detection level of quality in the region of pumping concrete strength, pumping concrete quality control will play an active role.This study can the Handan pumping concrete strength testing in the future to provide a reference.