Study On The Curves And Engineering Application For Concrete Products Strength Measurement In Area

Concrete structures were widely used in the field of civil engineering. The qualitycontrol for concrete strength was the key measures to ensure the safety of buildingstructures. The inspection technology on concrete strength by using the method ofsound, light, heat, electricity, magnetism, radiation was introduced to evaluate theproperty for the concrete structure under the precondition that would less damage to theconcrete members, which has advantage of accuracy and rapidity.With the increasing of complexity construction technology development andcommercialization of concrete, concrete products and high-strength concrete in theactual project have been widely used, which caused the changes of concrete componenttremendously. How to improve the detection accuracy of nondestructive testing becamea big question to scholars and inspection staff. The importance with research on thecurve for the relationship between rebound value and compressive strength for thespecialized district was concerned seriously.The research on the curve for the relationship between rebound value andcompressive strength for Lin Yi area was undertaken according to the experimentalresearch on method of rebound to the concrete members.The rebound-strength curve of regression was given based on the comparison databetween rebound value and compression test results.The experimental research was also done to taking into account the differencebetween the conservation condition and test block molding methods, the modifiedcoefficient was brought forward, which can ensure the accuracy for therebound-strength curve to Lin Yi areas when the concrete design strength betweenC20-C50.