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  1. No Access

    Chapter

    Magnetic Field Imaging of Steel Reinforcing Bars in Concrete Using Portable Scanning Systems

    Concrete structures throughout the world face the danger of sudden collapse if the condition of their steel reinforcement is not monitored regularly. Bridges are the most vulnerable to catastrophic failure as ...

    Z. Z. Yu, P. A. Gaydecki, I. Silva… in Review of Progress in Quantitative Nondest… (1999)

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    Chapter

    Defect Visualization and Location of Reinforcing Bars and Cables in Concrete Using Active Electromagnetic Induction Imaging

    Reinforced concrete is used to build many modern structures such as bridges and buildings. The strength of these structures is dependent upon the integrity of the steel reinforcing embedded in the concrete. Ov...

    J. L. Simmonds, P. A. Gaydecki in Review of Progress in Quantitative Nondest… (1998)

  3. No Access

    Chapter

    An Intelligent Electrical Time Domain Reflectometry System for the Detection and Characterisation of Fault Conditions in Posttensioning Ducts of Smart Concrete Structures

    In civil engineering structures involving prestressed concrete, the use of posttensioned systems is very common. Post-tensioning is achieved by passing steel cables into ducts previously cast into the concrete...

    E. I. Okanla, P. A. Gaydecki, S. Manaf… in Review of Progress in Quantitative Nondest… (1997)

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    Chapter

    Ultrasonic NDT Prototype for the Inspection of Ducted Post Stressing Tendons in Concrete Beams

    There is worldwide concern about concrete bridges which derive their strength from post stressed steel tendons in grouted ducts. Problems arise when grouting has not been carried out properly, since the combin...

    P. J. Duncan, P. A. Gaydecki, F. M. Burdekin in Review of Progress in Quantitative Nondest… (1996)

  5. No Access

    Chapter

    A Novel Inductive System for Two-Dimensional Imaging of Reinforcing Components in Concrete Structures: From Hardware to Image Enhancement

    There is now growing concern regarding the safety of many prestressed concrete structures [1]. Of primary importance is the condition of the reinforcing steel, and much research effort has been expended on the...

    P. A. Gaydecki, K. J. Glossop… in Review of Progress in Quantitative Nondest… (1996)