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flag Engineers repaired water tunnels in San Diego using high-performance geopolymer mortar.

flag Engineers are using high-performance geopolymer mortar to repair aging, irregularly shaped water tunnels, which traditional methods cannot fix. flag The trenchless technique seals leaks and applies a seamless, durable lining to improve hydraulic efficiency and extend infrastructure life. flag A recent 2026 project in San Diego demonstrated the method’s effectiveness, stopping groundwater infiltration and proving more cost-effective than traditional relining.

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