LBR Components

Our line of products for preparing Limerock Bearing Ratio (LBR) samples comply with the Florida FM 5-515 standard for evaluating base and subgrade materials.


LBR Compaction  Mold Only
Model: BRA-59M
LBR Compaction Mold Base Only
Model: BRA-59B
CBR Surcharge Weights

CBR Surcharge Weights

Starting at $35.50
Models: BRA-63, BRA-64
LBR Spacer Disc
Model: BRA-62
CBR Swell Plate
Model: BRA-67
Penetration Piston for CBR Test
Models: BRA-30, BRA-31
CBR Filters

CBR Filters

Starting at $7.00
Models: BRA-75, BRA-76
  • Limerock Bearing Ratio (LBR) Mold Assembly components for preparing 6x6in (152mmx152mm) soil specimens include mold, base and collar for preparing specimens
  • LBR Compaction Mold Only is 6x6in (152x152mm) for LBR testing.
  • LBR Compaction Mold Collar Only fits top of the LBR Mold old to allow proper compaction of sample.
  • LBR Compaction Mold Base Only supports the Mold and Collar during compaction.
  • Surcharge Weights are available in annular or slotted versions and used to apply surcharge loads during testing.
  • LBR Spacer Disc fits in bottom of CBR Molds and serves as a false bottom during sample molding.
  • LBR Swell Plate used in testing to measure swell.
  • Penetration Piston for CBR Test is also used for LBR testing.
  • CBR Filters are filter papers placed between soil and spacer disc during the test and on top of the soil surface after compaction.