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Filter Point (FP) Concrete Linings

Filter Point Concrete Linings with filtration points (drains) provide erosion-resistant, permeable concrete linings for ditches, channels, canals, streams, rivers, ponds, lakes, reservoirs, marinas, and protected port and harbor areas. Filter Point Concrete Linings have a cobbled surface and a relatively high coefficient of hydraulic friction in order to achieve lower flow velocities and to reduce wave run-up. The filtration points provide for the relief of hydrostatic uplift pressures, increasing the system’s stability.

Filter Point Concrete Linings were the first type of fabric formed concrete system developed. In 1965, a Dutch patent was issued for “fabric formed slope paving.” The form suggested by this patent was later refined to create the first “filter point” lining.

 

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