Testing and Technical Information


Walls, Railings, Vehicular Barriers


At ReCon, we have done the testing and analysis required to support engineers that utilize ReCon in their critical infrastructure projects. We encourage wall design engineers to reach out to ReCon and request the data and tools that will assist them. Some of the information available includes:


Retaining Wall Design

  • Testing Info
    • Grid Connection Test Data for:
      • Mirafi 5XT, 8XT and 10XT
      • Strata 350 and 550
      • Telegrid 5530 and 8030.
    • Direct Sliding Test Results
    • Block Shear Test Results
    • Gravity Wall Spacer Bar (for 7.2 degree batter) Shear Test Results

Pedestrian Railing and Fence Design … Tools that assist in determining the
configuration of block types and sizes required to resist overturning of
Pedestrian Railings and Wind Loaded Fences that are attached to the top
of a ReCon Wall.

  • ReCon Pedestrian Rail and Fence Post Calculator

Vehicular Barriers … Tools that aid in the design of Vehicular Barriers that
utilize the ReCon Guardrail Block

  • Analysis of IBC 6000 # impact load on ReCon Guardrail Block Barrier
    with moment slab block
  • Analysis of TL – 1 13,500 # impact load on ReCon Guardrail Block
    Barrier with moment slab block
  • Analysis of IBC 6000 # impact load on traditional post and beam
    guardrail mounted to ReCon Full High Cap and moment slab block
  • Ericksen Roed & Associates Structural Engineers Report dated 12/2/05,
    Freestanding and Vehicle Barrier Wall Analysis – PDF
  • MRJ Engineering dated 10/3/05 & 11/5/05 regarding Sliding for
    Vehicle Barrier Wall – PDF

Third Party Design Software Vendor Data Files

  • SRWall Versions 3.22 and 4.0 Vendor Data Files
              for the design of geogrid walls only
  • MSEW 3.0 Tutorial
  • MSEW 3.0 Vendor Data Files for the design of geogrid walls only.



Did You Know!!!


Pedestrian Railings

  • The ReCon 39” Deep Top Block with a Pedestrian Railing attached meets the overturning requirements of the IBC.  A GREAT solution, avoiding the need to mechanically fasten multiple courses of block and / or pouring concrete into hollow blocks
fence retaining wall

Vehicular Barriers

  • The ReCon Vehicular Barrier System can meet both the IBC 6000 # and the AASHTO TL-1 13,500 # Impact Load.
traffic barrier retaining wall

Frictional Grid Connections and 100% Coverage!

  • The ReCon Frictional Grid Connection meets the most stringent performance specifications for block to grid connection AND provides 100% grid coverage (as opposed to 25% or 50%).
Geogrid retaining wall

Base Course Sliding and the Importance of a Flat BASE Block!

  • ReCon has tested “SLIDING” of its BASE Block on a crushed stone leveling pad and of its MIDDLE Block on the same crushed stone leveling pad. The results are significantly better when using the BASE Block.  Thus, always use a ReCon BASE Block for the first course (unless the leveling pad is concrete).  Some large block systems offer a “hollow block” with no smooth bottom base block.  In that situation, it would be critical that any design with such a system calculate sliding based on actual test data and NOT on the default value for sliding between concrete and crushed stone!


Large block retaining wall.