Testing of holes in concrete using gamma radiography

Peng Chi Peng, Ming Cheng Chen, Chiung Hui Lin, Chun Yu Chi, Chung Yue Wang

研究成果: 專家出版物貢獻類型 文章

2 引文 斯高帕斯(Scopus)


Due to complex material and nonuniform characteristics of reinforced concrete members, practical obstacles exist when conducting nondestructive testing for determination of the position of holes in concrete. This paper discusses how to use gamma- rays to penetrate concrete and project images of internal structures and holes/discontinuities on film. By analyzing the geometry of projected images on the film, the size and position of holes in concrete members can be obtained. Referring to gamma-ray exposure curves on reinforced concrete structures, this paper also establishes a relation of gamma-ray sources and thicknesses of concrete to calculate the gamma-ray exposure time. It will help inspectors and engineers to effectively estimate the quality of reinforced concrete structures.

專業出版物Materials Evaluation
出版狀態已出版 - 3月 2009


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