Flexamat is a "Tied Concrete Block Mat".
(Tied Concrete Block Mat is a generic term for Flexamat.)
Flexamat consists of concrete shapes, locked together with a high strength, polypropylene geogrid. There are openings around each concrete block that give Flexamat the flexibility and enable it to be packaged in rolls. The openings also allow vegetation to grow through the mat. Eventually, vegetation will completely cover Flexamat. It can be manufactured with various backings such as non-woven fabric to stop vegetation growth or a TRM (turf re-enforcement mat) depending on the soil conditions and other factors.
There's a wide range of applications where Flexamat is utilized, but it is most commonly used for erosion control. Flexamat is used to control erosion in channels, outlet protection, on slopes, for shoreline protection and many other applications.
Flexamat offers permanent, hard armor protection, with a natural vegetated appearance. Flexamat may be mowed over with commercial mowing equipment or left to grow wild. Besides grass, there are many other types of native plant species that can be planted to grow within the mat. For example, Willow Saplings were planted through Flexamat for a streambank re-vegetation project.
For large jobs to reduce shipping costs, Flexamat® can be manufactured on site. Talk to one of our representatives for more information.
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Flexamat Properties:
| Property | Flexamat |
| Concrete Used |
4500 psi 5% Air Entrained 3/8" Peagravel |
| Mat Width | Manufactured in standard widths of 4', 5.5', 8', 10', 12, & 16' |
| Underlayment | Standard Flexamat is manufactured with a double net straw blanket adhered to the backside of the Flexamat blocks. It may also be manufactured with a non-woven fabric attached to the back, as well as a wide variety of TRMs (turf re-enforcement mats). Onsite conditions and the project needs determine the underlayment material. Click here to find more information on customization options. |
| Weight per Square Foot |
10lbs per square foot |
| Block Size |
The concrete blocks are 7" x 7". There is 1.5" spacing between the blocks. |
| Limiting Shear |
24+ PSF (non vegetated) |
| Limiting Velocity |
19+ft./second (non vegetated) |
