Research progress on non-destructive testing methods for rebar corrosion in concrete structures
Reinforced concrete structures are widely used in infrastructure construction and industrial and civil buildings because of their high performance and low cost.Under the action of external loads and environmental erosion,corrosion of reinforcing bars in structures inevitably occurs,which reduces the safety and durability of the structure and leads to high maintenance costs.Regular inspection of the corrosion of reinforcing steel in concrete structures is of direct significance in determining the bearing ca-pacity of the structure after the appearance of corrosion and predicting the remaining life of the structure.After years of development and integration of multidisciplinary theories,the non-destructive testing technology of reinforcement corrosion has been applied to some practical projects.However,modern engineering construction has put forward higher requirements for corrosion detection technology,espe-cially under the impetus of new generation of information technology such as big data and machine learn-ing.Rebar detection methods are facing industrial change and technological upgrading towards digitaliza-tion,automation and intelligence.In order to promote the progress of the inspection technology and evaluation system of reinforced concrete structure,this paper summarizes and reviews the main meth-ods of non-destructive testing of rebar corrosion,focuses on the application and research results of the emerging intelligent perception technology in rebar corrosion detection,puts forward the challenges faced by the existing technology,and looks forward to the direction of its future development.
rebar corrosionnon-destructive testinghalf-cell potentialfiber optic sensorradio frequency identificationacoustic surface waves
万方数据
维普
