Published: Građevinar 77 (2025) 4
Paper type: Professional paper
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Review of influencing factors of prestressed concrete cylinder pipe durability

A prestressed concrete cylinder pipe (PCCP) is a composite conduit comprising a concrete core, an anti-seepage steel cylinder, prestressed steel wires, and a mortar protective layer. Accidents involving PCCPs can have adverse effects on water supply and industrial production. Therefore, exploring and analysing the factors influencing the durability of PCCPs has significant scientific and practical value. This provides researchers with a more comprehensive perspective on the lifespan and durability of PCCP. This paper systematically summarises and categorises the factors affecting PCCP durability, including chemical erosion, manufacturing defects, improper installation, and poor operational conditions. The main factors and processes influencing PCCP durability are delineated from these four aspects. This paper concludes with recommendations for enhancing PCCP durability. This suggests the need for more suitable concrete additives, improving the composition of the surface coatings on pipelines, researching the longitudinal stress of PCCPs, and conducting non-destructive testing on PCCPs.

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