基于回弹法检测混凝土强度的主要影响因素研究

Research on Main Influencing Factors of Concrete Strength Detection Based on Rebound Method

回弹法是对混凝土抗压强度进行检测的一种常用方法,其检测精度对施工过程中判断混凝土的质量,从而最终保证工程质量有着重要的影响。因此基于因素分析法,在剖析回弹法基本原理的基础上,对回弹法的主要影响因素进行了分析。该分析结果显示,混凝土材料对检测结果影响较小,而施工过程中的成型方法、养护方法、碳化深度和龄期,以及试验操作过程中的回弹方向、浇筑面、检测人员和仪器,会对检测结果产生较大影响,需在检测过程中按规范进行操作或对检测值进行相应修正。

Rebound method is a common method for testing the compressive strength of concrete.It’s testing accuracy has an important influence on judging the quality of concrete in the construction process.So the main influencing factors of rebound method was analyzed based on the factor analysis methodand analyzing the basic principle of rebound method.The analysis results show that the concrete materials has littleinfluence on the test result,and the forming method,maintenance method,carbonation depth and age in the construction process,as well as the rebound direction,pouring surface,testing personnel and instruments in the test operation process will have a greater impact on the test results,so it is necessary to operate according to specifications or revise the test values accordingly.