无损检测技术评估混凝土碳化深度的探讨  

Discussion on evaluation of concrete carbonation depth by nondestructive testing technology

作　　者：李蓓[1,2] 李鑫燚 金南国 田野[1] 金贤玉[1] LI Bei;LI Xinyi;JIN Nanguo;TIAN Ye;JIN Xianyu(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China;College of Civil Engineering and Architecture,Zhejiang University of Water Resource and Electric Power,Hangzhou 310018,China)

机构地区：[1]浙江大学建筑工程学院,浙江杭州310058 [2]浙江水利水电学院建筑工程学院,浙江杭州310018

出　　处：《混凝土》2021年第4期140-145,共6页Concrete

基　　金：浙江省青年科学基金项目(LQ19E080020);973计划(2015CB655103)。

摘　　要：现有检测混凝土碳化深度的方法大多都是破坏性的,对于大型构件或者一些只能进行原位测试的构件具有一定的局限性。基于碳化过程中混凝土微观结构的变化规律,对评估混凝土碳化深度的各类无损检测技术进行了规整论述,包括它们的理论背景、试验装置、试验步骤以及试验结论,探究它们评估混凝土碳化深度的可行性和准确性,并且提出了提高实用性的建议。无损检测技术在评估混凝土碳化深度方面拥有巨大的潜力,值得研究和推广运用。Most of the existing methods to measure the carbonation depth of concrete are destructive and have certain limitations for large components or those that can only be tested in situ.Based on the variation of concrete microstructure during carbonization,all kinds of nondestructive testing techniques for evaluating concrete carbonization depth are discussed,including their theoretical background,test equipment,test procedures and test conclusions,and explores their feasibility and accuracy in evaluating concrete carbonization depth,and puts forward suggestions for the improvement of practicality.Nondestructive testing(NDT)has great potential in evaluating carbonation depth of concrete,and it is worth studying and popularizing.

关 键 词：无损检测技术 混凝土 碳化深度 

分 类 号：TU528.07[建筑科学—建筑技术科学]