Investigation The Behaviors of Ferroconcrete by Ground Penetrating Radar

• Main Authors: Chen, Ping-Huang, 陳炳煌
• Other Authors: Chang, Che-Way
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/88873481542310722574

博士 === 中華大學 === 土木與工程資訊學系(所) === 97 === Ground penetrating radar (GPR) has been widely used in the measurement of the structural steel within concrete at the time being. However, deep enough studies about its application in measurement of degree of corrosion of structural steel within concrete are still less popular. In general, degree of corrosion of steel (rebars) within concrete is measured by electro-chemical method. However, this study aims at developing a Non-Destructive Testing method for measurement of degree of corrosion of rebars within concrete using GPR measuring technology and is carried out by increasing speed of corrosion of rebars within concrete protective layers in different thickness. Scanning image with GPR is transformed into digital code value. This Non-Destructive Testing method is developed by examination of the difference between code values obtained from different degrees of corrosion of rebars within concrete protective layers in different thickness and the physical reflection behavior of propagation of electromagnet wave in different electronic parameters.