ASTM AASHTO California bearing ratio CBR mold and components Soil test equipment

Introduction

The California Bearing Ratio (CBR) Mold Set includes the mold, base and collar components

which is needed to prepare compacted specimens for CBR testing.
Each component is constructed of heavy steel, is rust resistant and meets ASTM and AASHTO standards.

CBR Surcharge Weights in annular or slotted models used in application of surcharge forces.
CBR Spacer Disc is inserted into CBR Molds as a false bottom during compaction.
CBR Swell Plate is used when measuring swell and as a carrier for surcharge weights.
CBR Swell Tripod positions a dial indicator to measure specimen swell.
Penetration Piston for CBR Test penetrates the CBR sample under load while depth of penetration is recorded.
CBR Cutting Edge fits on the end of a CBR mold for field sampling of in-situ soils.
CBR Filters are reusable stainless steel wire mesh circles or single-use coarse filter paper placed between soil and spacer disc.

Technical specifications

CBR mold size: 6in * 7in(152*178mm) ID*H

Detached collar size: 152*51mm ID*H

Annular Surcharge Weight: 5lb(2.25kg), .125in (54mm) center hole.

Slotted surcharge weights:5lb(2.25kg), .125in (54mm) center hole.

CBR spacer disc: 151x61mm 

Swell plate: dia. 150mm, metal perforated plate with adjustable stem which easily locks in place at the contact end.

CBR cutting ring: 152mm*51mm ID*H

CBR filter: No. 100 Stainless Steel Mesh or Paper Filters