Filter Point Linings provide erosion-resistant, permeable concrete linings for structures constructed over firm subgrades and relatively low hydrostatic loads. Its double-layer fabric form is joined by interwoven filter points (drains) to form a concrete lining with a deeply cobbled appearance.
Filter Point Linings were the first type of fabric-formed concrete system developed. As the use of this technology has spread worldwide, a variety of other forms have been developed to meet specific job requirements.
Ditches, channels, canals, streams, rivers, ponds, lakes, reservoirs, marinas, and port and harbor areas.
- Its relatively high coefficient of hydraulic friction helps in reducing flow velocity and wave run-up.
- The filter points provide for the relief of hydrostatic uplift pressures, increasing the system’s stability.