NABL Accredited Calibration Laboratory
LABORATORY CBR APPARATUS-ELECTRICALLY OPERATED WITH 50 KN PROVING RING-ASTM D1883, AASHTO T193

LABORATORY CBR APPARATUS-ELECTRICALLY OPERATED WITH 50 KN PROVING RING-ASTM D1883, AASHTO T193

Model Number : TM-034ASTM

This test method is used to evaluate the potential strength of sub‑grade, sub‑base, and base course material, including recycled materials for use in road and airfield pavements. The CBR value obtained in this test forms an integral part of several flexible pavement design methods.

Compliance Standards:

ASTM D1833, AASHTO T193

Significance & Use:

This test method is used to evaluate the potential strength of sub‑grade, sub‑base, and base course material, including recycled materials for use in road and airfield pavements. The CBR value obtained in this test forms an integral part of several flexible pavement design methods.

Salient Features:

  1. Electrically operated system and motorized operation
  2. Robust and compact two column frame with adjustable upper cross beam.
  3. Frame capacity - 50 Kn (5000 kg)
  4. Two speed machine (1.0mm/min for BS standard and 1.27mm/min for ASTM/EN/AASHTO Standard)
  5. Loading and Unloading can be accomplished by UP/DOWN Button or Rotary key available on the front panel.
  6. Proving ring is fitted to the upper cross beam to read the stability values.
  7. Dial Gauge (Analog indicator) is fitted to the column.
  8. Rapid adjustment of the platen is provided, which enables daylight to be taken up quickly and also close control of application of a seating load
  9. Compact bench‑mounting
  10. Aesthetic outer appearance

Supplied Complete with following accessories and parts:

  1. Load frame, Motorized 5000 Kg (50 KN) capacity, With two rate of travel (1.0 & 1.27mm/min)
  2. C.B.R. Mould, 152.4 mm diameter x 177.8 mm high with extension collar & perforated base plate. Made of Mild steel.
  3. Penetration Piston, face diameter (49.63  ± 0.13) mm with adjustable bracket and not less than 4 inch (101.6 mm)  long
  4. Penetration dial gauge ‑ [1 inch travel (25 mm) x 0.0005 in (0.01 mm) divisions]. Complete with rack extensions and chisel edge anvil.
  5. Perforated plate (Swell plate), 149.23 mm diameter with adjustable stem and lock nut gunmetal
  6. Metal tripod stand (Swell tripod) for dial gauges.
  7. Displacer block, (150.8 mm) x (61.4 mm) high. Plated steel with detachable handle.
  8. Annular metal weight, 2.27 kg (5 lb), 149.23 mm diameter with 53.98 mm diameter central  hole.
  9. Slotted metal weight, 2.27 kg (5 lb), 149.23 mm diameter with 53.98 mm diameter slot.
  10. Rammer 2.6 kg weight with a drop of 310 mm
  11. Rammer 4.54 kg having 50.8 mm diameter face, 457.2 mm fall
  12. Proving Ring of 10 KN Capacity, fitted with dial gauge and supplied with Calibration report.
  13. Filter paper ‑ 150 mm dia ‑ Box of 100
  14. With Test / Calibration Certificate.

Click here for working video : https://www.youtube.com/watch?v=hCWSTXztzSw

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