回弹法检测铝合金模板成型混凝土构件抗压强度测强曲线修正值的研究  

Study on the Correction Value of Compressive Strength Curve of Aluminum Alloy Formwork Formed Concrete Members Tested by Rebound Method

作　　者：郑金柜 周磊 Zheng Jingui;Zhou Lei(Jianyan Testing Group Co.Ltd.,Xiamen,Fujian 361000)

机构地区：[1]健研检测集团有限公司,福建厦门361000

出　　处：《江西建材》2024年第8期143-146,共4页

摘　　要：铝合金模板成型的混凝土构件抗压强度的检测主要采用无损检测方法,其中回弹法是应用最广泛的无损检测方法。然而,进行铝合金模板成型混凝土构件的抗压强度检测时,依据现行标准测强曲线的回弹法检测结果与钻芯法的检测结果存在较大的系统偏差,即回弹法往往出现“测不准”的现象。为解决该问题,文中基于钻芯法修正回弹法的原则,采集铝合金模板成型混凝土构件的对应的回弹值、碳化深度值和芯样抗压强度数据,采用数学方法进行回归分析研究,建立现行标准回弹测强曲线的修正值。Aluminum alloy formwork formed concrete members compressive strength detection mainly using non-destructive testing methods,among which the rebound method is the most widely used non-destructive testing method.However,when testing the compressive strength of aluminum alloy formwork concrete members,there is a large systematic deviation between the test results of the rebound method based on the current standard strength curve and that of the drill core method,that is,the phenomenon of "uncertainty" often appears in the rebound method.In order to solve this problem,based on the principle of core drilling method to modify the rebound method,this paper collects the corresponding rebound value,carbonization depth value and core compressive strength data of aluminum alloy formwork formed concrete members,adopts mathematical method to conduct regression analysis and research,and establishes the correction value of the current standard rebound strength measurement curve.

关 键 词：铝合金模板 回弹法 M225型回弹仪 测强曲线 

分 类 号：TU741[建筑科学—建筑技术科学]