Open AccessStudy on Nondestructive Test Method for Inner Defects of Mass Concrete
Author(s) -
Shuxue Cao,
Jun Li,
Jie Wang,
Yan Yong-dong,
Jun Yang,
Hongbin Zhao
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/668/1/012058
Subject(s) - nondestructive testing , ground penetrating radar , reliability (semiconductor) , structural engineering , bridge (graph theory) , materials science , ultrasonic sensor , ultrasonic testing , mass concrete , radar , geology , computer science , acoustics , engineering , physics , quantum mechanics , medicine , telecommunications , power (physics)
Due to the large geometric size and the influence of dense embedded steel bars, It is difficult to use the traditional nondestructive testing (NDT) method for evaluation the inner defects of mass concrete. A comprehensive nondestructive testing method for internal defects of mass concrete was proposed, which used elastic wave Computed Tomography (CT) scanning for general survey, ultrasonic tomography and ground penetrating radar (GPR) technology for fine investigation. The method was applied to the defect detection of a bearing platform concrete belonging to an interchange bridge. Finally, the reliability of this method was verified by the results of core drilling. The results show that the proposed method can effectively detect the distribution of defects in concrete, provided a new solution and practical guidance for the internal defect detection and reinforcement of mass concrete structure.