Product Code : MSI 3066

Product Description

The MSI 3066 Laboratory California Bearing Ratio (CBR) Apparatus – Motorised is designed for conducting CBR tests on soil and pavement materials in accordance with IS 9669 and IS 2720 (Part XVI).

The apparatus incorporates a 50 kN (5000 kgf) capacity motorised load frame with three speeds, providing controlled penetration of the standard CBR specimen. The complete outfit includes the CBR mould, perforated base plate, extension collar, penetration piston, surcharge weights, proving ring, dial gauge and specimen preparation accessories.

It is suitable for laboratory evaluation of subgrade soils, pavement materials and other compacted materials used in road and highway construction.

Features

• Conforms to IS 9669 and IS 2720 (Part XVI).

• Motorised operation for controlled CBR penetration.

• 50 kN (5000 kgf) load frame capacity.

• Three selectable speeds.

• Standard 150 mm internal diameter CBR mould.

• Complete specimen preparation and testing accessories.

• Penetration piston with 50 mm face diameter.

• 50 kN proving ring for load measurement.

• Dial gauge for penetration measurement.

• Adjustable dial gauge bracket.

• Supplied with surcharge weights.

• Heavy-duty construction for laboratory use.

Technical Specifications

MSI 3066A  Load Frame, 50 kN (5000 kgf) capacity, 3 speeds

MSI 3066B : CBR Mould, 150 mm ID × 175 mm high

MSI 3066C : Perforated Base Plate, For MSI 3074-2 mould

MSI 3066D : Extension Collar, 150 mm ID × 50 mm high

MSI 3066E : Penetration Piston, 50 mm face diameter

MSI 3066F : Adjustable Bracket, For penetration dial gauge

MSI 3066G : Spacer Disc, 148 mm dia × 47.7 mm high, detachable handle

MSI 3066H : Annular Metal Weight, 2.5 kg, 147 mm dia × 53 mm central hole

MSI 3066I : Perforated Metal Weight, 2.5 kg, 147 mm dia, with 53 mm hole

MSI 3066J : Perforated Plate, 148 mm dia, adjustable stem & lock nut

MSI 3066K : Metal Tripod, For dial gauge

MSI 3066L: Cutting Collar, For specimen preparation

MSI 3066M : Rammer, 2.6 kg, 310 mm controlled drop

MSI 3066N : Rammer, 4.9 kg, 450 mm controlled drop

MSI 3066O : Proving Ring, 50 kN capacity

MSI 3066P : Dial Gauge, 25 mm travel × 0.01 mm least count

Optional Extras

MSI 3066Q

Annular Metal Weight

5 kg, 147 mm dia × 53 mm central hole

MSI 3066R

Slotted Metal Weight

5 kg, 147 mm dia × 53 mm slot

Main Components

50 kN Motorised Load Frame
The three-speed load frame provides controlled penetration loading during the CBR test and has a maximum capacity of 50 kN (5000 kgf).

CBR Mould Assembly
The standard mould has an internal diameter of 150 mm and height of 175 mm, with a perforated base plate and extension collar.

Penetration System
The penetration piston has a 50 mm diameter face and is used to penetrate the compacted specimen at the required test rate.

Surcharge Weights
The apparatus includes 2.5 kg annular and perforated metal weights. Optional 5 kg annular and slotted weights are also available.

Load Measurement
A 50 kN proving ring is provided for measuring penetration load.

Penetration Measurement
A 25 mm travel dial gauge with 0.01 mm least count is provided for measuring piston penetration.

Specimen Preparation Accessories

• 2.6 kg rammer with 310 mm controlled drop

• 4.9 kg rammer with 450 mm controlled drop

• Cutting collar

• Spacer disc with detachable handle

• Perforated plate with adjustable stem and lock nut

Applications

• California Bearing Ratio testing

• Subgrade soil evaluation

• Highway and pavement design

• Road construction material testing

• Soil strength evaluation

• Quality control of compacted subgrade

• Geotechnical laboratory testing

• Civil engineering research and educational laboratories