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CONCRETE PIPES AND MANHOLES118 CPI %u2013 Concrete Plant International %u2013 2 | 2026 www.cpi-worldwide.comField experienceSeveral Andalusian cities, including Seville and Fuengirola, have successfully implemented concrete pipes lined with Agru Ultra-Grip concrete protective liners. Applications range from the refurbishment of existing pipelines and the replacement of heavily stressed collectors to the extension of municipal sewer networks. These projects demonstrate that the composite system performs reliably even under challenging climatic and chemical conditions and contributes to the long-term safeguarding of infrastructure.40 years of Agru concrete protective linersIn 1986, Agru introduced the world%u2019s first anchored concrete protective liner. With 40 years of continuous development and field experience, Agru remains the original pioneer and benchmark for durable concrete protection. The systems help ensure structural integrity in potable water tanks and reservoirs, wastewater treatment structures, industrial facilities, and other concrete exposed to chemical or mechanical stress. ConclusionConcrete pipe systems with thermoplastic liners provide a technically mature solution for enhancing the durability of wastewater infrastructure. The Agru Ultra-Grip concrete protective liner combines the proven mechanical properties of concrete with a highly resistant protective layer, thereby meeting the key requirements for modern, long-lasting, and cost-efficient drainage networks. nFURTHER INFORMATIONAgru Kunststofftechnik GmbH Ing.-Pesendorfer-Str. 31 4540 Bad Hall, Austria T +43 7258 7900 office@agru.at, www.agru.atIn Spain, the Agru Ultra-Grip concrete protective liner system extends the service life of concrete pipes.Long-term performance makes Agru%u2019s concrete protective liners a proven solution for extending the lifespan of critical concrete infrastructure.