Related references
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Article
Construction & Building Technology
Xu Wang et al.
Summary: A novel corrosion monitoring method for PCCP spigots is proposed, combining the Tafel extrapolation and SAW methods. The self-corrosion rates and output voltage-time curves were determined using these methods, showing the effectiveness of mortar coating and sulfate inhibition on preventing rusting of spigots. Normalization based on amplitude is suitable for monitoring the entire rusting process, while normalization based on energy is more suitable for early stage monitoring.
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Article
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Article
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Summary: The study proposed a method to repair damaged PCCP with broken wires by externally bonding CFRP. Finite element models were established and the effect of externally bonded CFRP to repair PCCP was systematically analyzed, showing that it can significantly reduce strains and increase resilience of PCCP. The improved PCCP performance was assessed based on crack visibility and steel cylinder deformation, indicating that CFRP may fail ahead of PCCP.
THIN-WALLED STRUCTURES
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Article
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Summary: Prestressed CFRP repair is an effective method to repair damaged PCCP, significantly reducing material strain with almost no damage. The influence area of broken wires is limited, and both non-prestressed CFRP repair and prestressed CFRP repair can increase the pipe's bearing capacity.
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INTERNATIONAL JOURNAL OF CONCRETE STRUCTURES AND MATERIALS
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