Flexamat is a tied concrete block mat used to control erosion in swales, ditches, slopes, shoreline protection, or any area where soil sediment can be moved by water runoff.
Flexamat consists of concrete shapes, rectangular or round, that are tied together with high strength geogrid. This product results in the geogrid and the concrete becoming a high strength flexible hard armor against erosion. Flexamat enables vegetation to become established while remaining a permanent erosion control solution. Eventually, vegetation will cover the entire mat.
Flexamat comes in rolls and is available in widths of 5.5', 8', 10', and 16'. These rolls are available in various lengths. The roll design makes installation very efficient. The application area should be graded so that the Flexamat has direct contact with the subgrade. It should also be seeded prior to the Flexamat installation. A smooth bucket on the excavator is used to unroll the mat into place.
Flexamat was chosen to replace rip rap as a permanent erosion control solution.
Flexamat was used here for a project for the City of Fargo's 40th Lift Station.
Photo from 2015 Elk River Project
Flexamat Plus includes the original Flexamat product with both Curlex II and Recyclex V as the underlayment. Flexmat Plus gives you the vegetative properties of Curlex II and the permanent TRM of Recyclex V! Flexamat Plus works well for high flow channels, water edges and road overtopping due to its permament TRM.