|Table of Contents|

Application of Radar Wave in Nondestructive Testing of Concrete(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2007年03期
Page:
82-86
Research Field:
Publishing date:
2007-09-20

Info

Title:
Application of Radar Wave in Nondestructive Testing of Concrete
Author(s):
TU Wen-ge;  ZOU Yin-sheng;  CHEN Li-qing;  TIAN Ming-ge
School of Civil Engineering, Hunan University, Changsha 410082, Hunan, China
Keywords:
radar;  attenuation;  compensation;  concrete;  nondestructive testing
PACS:
TU528
DOI:
-
Abstract:
According to the characteristics of diffuse and attenuation of radar wave in medium, the mathematical model of diffuse and attenuation of radar signal in concrete medium was established. Based on the work mechanism of radar wave, a formula about compensating the attenuation of the reflecting radar wave signal was presented, and an attenuation compensation formula was given. By image processing on the radar testing data compensated with the method, the radar scanning images were enough clear-cut to display defects in inner concrete, such as the crack, void, incompact zones and so on. It is illustrated with the radar images in practice, which displays the same fabric as the detected inner concrete member with damages. As a result, the method brings radar scanning images into accord with practice.

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Last Update: 2007-09-20