کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1888267 | 1533431 | 2013 | 8 صفحه PDF | دانلود رایگان |
• An underwater inspection system was developed which is able to monitor the state of reinforcement corrosion.
• The system is composed of a remotely operating vehicle (ROV) equipped with the sealed tube neutron generator (NG).
• All measurements could be performed without cleaning the concrete surface from fouling material.
The maintenance and repair of reinforced concrete structures, especially those submerged in the sea-water require effective inspection and monitoring techniques for assessing the state of corrosion in the reinforcement material. An underwater inspection system was developed which is able to monitor the corrosion of the reinforcement. The system is composed of a remotely operating vehicle (ROV) equipped with the sealed tube neutron generator (NG). By rotating the NG and by using the associated alpha particle technique it is possible to measure the concrete cover thickness together with the reinforcing bar diameter. The possibility of estimating the carbon and chloride contents in the concrete was investigated. Iron plates of different thickness, covered by 6 cm thick concrete block, were successfully detected and the thickness of the concrete cover was estimated. In addition, reinforcing bar of one and 3 cm in diameter were identified and measured. All measurements could be performed without cleaning the concrete surface from fouling material.
Journal: Radiation Measurements - Volume 59, December 2013, Pages 193–200