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Behavior of Joints

ASTM D5607
Rock shear box apparatus
Rock shear box apparatus
Rock shear box apparatus
Picture
Datalog 8
Rock shear box apparatus was originally developed at Imperial college, London, by Professor E. Hoek. It is a simple and practical method of determining the strength and slope stability of rock, both in the field and in the laboratory.
The apparatus consists of a shear box designed to accept samples not larger than 115x125 mm, or alternatively cores up to 102 mm dia. The shear box consists of two halves, the upper being connected to two rams for reversible shearing action and the lower connected to a ram for normal load application. The loads are recorded by Bourdon tube load gauges or by pressure transducers (in this case external datalogger is needed).
The normal loading system is complete with an adjustable low friction pressure maintainer to absorb volume changes of the specimen during the shearing action and to ensure a constant vertical stress.

Two versions are available:

32-D0548/A: Basic rock shear box apparatus with digital gauges to ASTM D5607 
It is supplied complete with: 5 digital gauges 25x0.001 mm (4 vertical and 1 horizontal); 2 mould formers; 2 hand operated pumps for lateral and vertical load fitted with Bourdon gauges. The pump for vertical load is fitted with a pressure maintainer to assure uniform load during the test.

32-D0548/D: Electronic rock shear box apparatus with potentiometric transducers to ASTM D5607 
It is supplied complete with; 5 potentiometric transducers with 25mm travel (4 vertical and 1 horizontal); 2 mould formers; 2 hand operated pumps for lateral and vertical load fitted with Bourdon gauges; 2 pressure transducers for the direct acquisition of the load values. The pump for vertical load is fitted with a pressure maintainer to assure uniform load during the test.

Displacement and load readings shall be acquired by suitable datalogger that has to be add as accessory. Two versions can be used to complete the testing configuration: standard model with dedicated display suitable for laboratory use or with battery operated model for on-site use.
 
The high alumina cement for the cementation of the sample is available  separately.

Joint roughness coefficient test device
Joint roughness coefficient test device is used to calculate the JRC of a rock or joint. The device consists of an adjustable inclined plane, on which the rock sample (100 mm max dia.) is placed, separated along the surface where the roughness is to be measured. Then the plane is slowly tilted until sliding of the upper part of the sample on the lower one occurs. From the measured inclination angle it is possible to evaluate the roughness index.

32-B0096: Apparatus for measurement of the joint roughness coefficient (Tilt test)

  • Inclination angle: 0 to 50°
  • Overall dimensions: 265x170x260 mm
  • Weight approx.: 4 kg

Profilometers (Barton comb)
Profilometers (Barton comb) are used for measurement of the roughness profile of rock samples.

Two versions available from CONTROLS:

32-D0566: Profilometer (Barton comb), 300 mm length. Weight 1 kg approx.

32-D0566/A: Profilometer (Barton comb), 150 mm length. Weight 0.5 kg approx.

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  • Home
  • Calibration
  • Equipment
    • Aggregates >
      • Sieves & Accessories
      • Sieve Shakers
      • Sample Splitters
      • Sand Equivalent Kit
      • Clay Index Kit
      • Accelerated Polishing Machine
      • Los Angeles Abrasion Machine
      • Specific Gravity Frame & Baskets
      • Density, Voids & Absorption
      • Cleanness Value Agitator & Washing Vessel
      • Weathering Index Roller & Tray
      • Crushing Value Apparatus (ACV)
    • Soil Properties >
      • Augers & Accessories
      • Scala Penetrometers
      • Field Inspection Testers
      • Particle Size Analysis Equipment
      • Atterberg Limits
      • Moisture Content Determination
      • Universal Proctor/CBR Automatic Compactor
      • Standard & Heavy Compaction (Proctor)
      • California Bearing Ratio (CBR) Apparatus
      • Vibrating Compaction Hammer
      • Impact Soil Tester (Clegg)
      • Plate Bearing Test Apparatus
      • Sample Preparation
      • Permeability Apparatus
      • Field CBR Test Set
      • Sand Replacement Test Sets
      • Chemical Tests Apparatus
      • Gay-Lussac Specific Gravity Bottles
    • Concrete & Cement >
      • COMPACT-Line Concrete Compression Machines
      • SMART-Line Control Consoles
      • Control Consoles for Advanced Testing
      • Flexural Testing Frames
      • Concrete Pipe Testers
      • Specimen Grinding Machines
      • Concrete Moulds
      • Slump Cone Set
      • Air Entrainment Meters
      • NDT Strength Evaluation Apparatus
      • Concrete Specimen Curing
      • Concrete Saws & Mixers
      • Concrete Compaction
      • Concrete Mortar Penetrometers
      • NDT Quality & Homogeneity Evaluation
      • NDT Durability Test Apparatus
      • NDT Structural Inspection & Monitoring
      • Core Drilling Machines
      • Cement & Grout Moulds
      • Setting Time Apparatus
      • Flow Tables for Mortar & Building Lime
      • Mortar Mixers
      • Cement Specimen Curing
      • Compression-Flexural Cement Testers
    • Asphalt & Bitumen >
      • Standard Asphalt & Bitumen Test Equipment >
        • Centrifuge Binder Extractors
        • Determination of Binder by Difference
        • Binder Recovery Apparatus
        • Solvent Recovery Unit
        • TMSG (Rice) Apparatus
        • Marshall Apparatus
        • Skid Resistance & Friction Tester
        • Road Surface Irregularity Measurement
        • Benkelman Beam Apparatus
        • Dynamic & Kinematic Viscometers
        • Standard Viscometers
        • Bacon Sampler
        • Flash Point Testers
        • Distillation of Cut-Back Asphalt apparatus
        • Determination of Solubility Set
        • Particle Charge Tester
        • Emulsified Asphalt Distillation Apparatus
        • Setting Tendency of Bitumen Emulsions
      • IPC Global Performance-Based Test Equipment >
        • Automatic Binder Extractors
        • Laboratory Mixers
        • Shearbox Compactor
        • Slab Roller Compactors
        • Cutting & Coring Machines
        • Wheel Trackers
        • Gyratory Compactors
        • Mixture Perfomance Testers
        • Universal Testing Machines
        • Stand-Alone SCB Testers
        • Modular Asphalt Testers
        • Dynamic Test Accessories
        • Binder Penetrometer
        • Rotational Viscometers
        • PAV & VDO
        • RTFOT Ovens
        • Ductilometers
        • Ring and Ball Apparatus
        • Bending Beam Rheometer
        • Dynamic Shear Rheometer
    • Soil & Rock Mechanics >
      • Consolidation Apparatus
      • Shear Testing Equipment
      • Static Triaxial Systems
      • Dynamic Triaxial Systems
      • Resonant Column
      • Triaxial Cells
      • Rock Sample Preparation
      • Behavior of Joints
      • Rock Classification
      • Uniaxial & Triaxial Systems
      • Rock Permeability & Durability
      • Uniaxial & Triaxial Accessories
    • General Lab >
      • Ovens & Hot Plates
      • Balances & Weights
      • Thermometers & Hydrometers
      • Measuring Instruments
      • Laboratory Glassware
      • Porcelain, Plastic & Misc
      • Laboratory Hardware
      • General Purpose Equipment
      • Drying Test Chambers
      • Laboratory Fume Extraction
    • Universal Testers >
      • UTM - HPT Series
      • Automatic Computerized UTM
      • Cold Bend Testing Machine
      • UNIFRAME Universal Testers
  • NDMS
    • Nuclear Density Meters >
      • Troxler Models
    • NDM Survey Meter
    • NDM Shipping
    • NDM Training
  • Hire
  • Documents
  • News
  • CONTACT US
    • Meet the Team
    • Join our Team