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Multi-faceted retaining structures with concrete block facings

With Fortrac Block, we offer you the possibility of fitting your Fortrac reinforced soil structure with various concrete block designs and looks. Supporting structures such as heavyweight walls, bridge abutments, but also retaining walls in water can thus be realised easily and quickly. The Fortrac geogrids, the filling soil and the blocks usually form the load-bearing element of the supporting structure when combined. Besides this active design, passive solutions are also possible. The mortar-free system can be used for almost any slope height and inclination up to 90°. Depending on the form of block, the facing can be easily erected by hand without the use of lifting tools. Small concrete blocks and terraces can be used to model a wide variety of terrain shapes and also partially greened retaining walls. Thanks to our Fortrac grids made of PVA, you can even erect your retaining structure in water containing sulphate and with alkaline materials, e.g. cement or lime stabilised, cohesive soils.


System benefits

  • Formwork-free, mortarless system
  • Wide selection of block shapes, sizes, weights, colours and finishes
  • Straight, curved and tiered walls possible
  • Project-specific solutions with structural or purely
    cosmetic/protective facings

Our system models

Hollow block facings

  • Medium sized lightweight hollow concrete blocks
  • Crushed stone filling ensures a very strong bond
  • Fewer blocks per m² speed up installation
  • Blocks placed by hand and with minimal equipment
  • Curved wall sections easily formed

Solid block facings

  • Small sized lightweight solid concrete bricks
  • Blocks placed by hand and with minimal equipment
  • Curved wall sections easily formed

Large concrete block facings

  • Large sized solid concrete blocks
  • Fewer blocks per m² vastly speeds up installation
  • Prefabricated blocks with cast-in geogrids further simplify installation

Component kit
Everything for your Block system model


  • Interaction flexible Fortrac geogrid
  • Separating nonwoven
  • Solid blocks
  • Hollow blocks
  • Large sized concrete blocks (reinforced/unreinforced)
  • Crushed-stone drainage layer

Application Examples

wide range of applications

Fortrac Block

Approach ramp for new Venice bypass

Italy | Modern hollow block facing with colour to suit landscape

Fortrac Block

Quayside at new Störmthaler See lake

Germany | Renaturation of former Espenhain open-cast mine

Fortrac Block

Retaining wall along main road through Burkau

Germany | Road rehabilitation incl. embankment fill by water

Fortrac Block

Retaining wall for power station in Temelin

Czech Republic | concrete blocks and vertical drainage

Fortrac Block

Abutment to bridge over river channel

Germany | Rehabilitation of two-lane L 71 regional road

Fortrac Block

Sports and leisure facilities in Waren, Müritz

Germany | Modelling of sports, leisure and park facilities for new youth hostel

Fortrac Block

M11 toll road, Moscow-St. Petersburg

Russia | High-speed motorway with over 60 GRS


Fortrac Block

Ayla Oasis lagoon landscape

Jordan | 4,300,000 m2 landscaped oasis, 15 km beach and waterfront promenade

Mastering Challenges with Fortrac Systems

Have a look at other system models »