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BFM (Ballasted Filtering Mattress)

Maccaferri's Ballasted Filtering Mattress (BFM) is a pre-fabricated composite marine mattress system specifically designed for coastal and marine applications.  The BFM system is typically specified for the construction of submerged foundations for breakwaters, groins, jetties, dikes, and artificial reefs.  The BFM is also designed for dredge disposal and sediment capping.  The BFM was developed to:

  • Provide scour protection for coastal structures in soft soils/sediments
  • Reduce the amount of bedding stone required for structural foundations
  • Stabilize sloped embankments and prevent scour around pilings or caissons
  • Reduce vertical and differential settlement of structural foundations
  • Reduce the cost of construction in and around water

The Ballasted Filtering Mattress (BFM) is constructed with:

  • A non-woven geotextile as a bottom separation filter
  • A central body consisting of a polypropylene geomat, internally strengthened with a double twist mesh protected with an anti-corrosion layer of Galfan® and a polymeric coating, or strengthened with a layer of geogrid
  • A ballasting of the central body with small crushed stones
  • A non-woven geotextile for the upper closure
  • A quilting with HDPE profiles and steel screws

 


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