Digital California Bearing Ratio Test Apparatus

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Digital California Bearing Ratio Test Apparatus

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MOQ : 1 Piece

Digital California Bearing Ratio Test Apparatus Specification

Power Supply
220V AC, 50 Hz

Frequency
50 Hz

Max Height
600 mm

Number of Specimens
Single specimen per test

Test Range
050 kN

Equipment Type
Digital California Bearing Ratio Test Apparatus

Interface Type
USB/RS232

Automation Grade
Semi-Automatic

Humidity
Up to 90% RH

Features
Automatic data acquisition, digital load and penetration measurement

Display Type
Digital LCD

Accuracy
1% of reading

Application
Determination of CBR value in soils

Measuring Range
050 kN

Response Time
Instantaneous

Temperature
10C to 40C

Port Size
50 mm diameter

Operating Voltage
220V AC

Specimen Size
150 mm diameter x 175 mm height

Mounting Type
Bench top

Resolution
0.01 kN

Usage
Soil testing for roads and highways

Capacity
50 kN

Machine Weight
90 kg

Test Speed
1.25 mm/min

Test Width
150 mm

Test Stroke
50 mm

Control Mode
Digital

Data Storage
Internal memory1000 tests

Compliance Standards
IS 2720, ASTM D1883, BS 1377

Sample Preparation
Supports manual and mechanical Moistyure Compaction

Data Output
Compatible with PC software

Calibration
Digital calibration support

Motor Type
Gear motor

Load Resolution
0.001 kN

Penetration Measurement
012.5 mm with digital encoder

Accessories Supplied
CBR test mould, penetration piston, annular weights

Display Language
English

Safety Features
Overload protection, emergency stop button

Operating Environment
Indoor laboratory

Maximum Load Indication
Yes

Digital California Bearing Ratio Test Apparatus Trade Information

Minimum Order Quantity
1 Piece

Delivery Time
1 Days

About Digital California Bearing Ratio Test Apparatus

Specification:

The Labtest Digital CBR Testing Machine is designed for performing laboratory evaluation of the California Bearing Ratio value of highway sub bases and subgrade and for the determination of strength of cohesive materials which have maximum particle sizes less than 19 mm (3/4). The machine is designed to be mounted on a suitable bench and comprises of a robust and compact two column frame with adjustable upper cross beam. The frame is 50 kN capacity. Three test speeds are provided 1.25 mm/min, 1.50 mm/min & 2.5 mm/min tests. This main feature allows the user to perform tests. Laboratory California Bearing Ratio Apparatus with software & PC interface.

Salient Features:

No need of separate observation on dial gauge and proving ring.
Facility to readout rate of loading in mm/minute.
Tare system to nullify initial load
The digital lcd display will retain the peak value until it is cleared.
Flow value and load on a single screen.
Flow value with a least count of 0.01 mm with accuracy of 1%.
Load value with a least count of 0.1 kg / 0.001 kn with accuracy of 1%.
Back light facility to observe the readings even in the dark.
Two line readout showing load, flow, and speed.
Software interface to PC and plot live graph.

Technical Specifications:

ZI 3096A Three Speed Load Frame, 50kn ( 5000 Kgf) Capacity
ZI 3096B Mould 150mm Id X 175mm High
ZI 3096C Perforated Base Plate for ZI3074- 2 Mould
ZI 3096D Extension Collar, 150mm Id X 50mm High
ZI 3096E Penetration Piston, 50mm Face Dia.
ZI 3096F Adjustable Bracket, for Penetration Dial Gauge
ZI 3096G Circular Metal Spacer Disc. with Detachable Handle 148mm Dia X 47.7mm Hight
ZI 3096H Annular Metal Weight, 2.5Kg, 147mm Dia with 53 mm Dia Central Hole
ZI 3096I Perforated Metal Weight 2.5 Kg. 147mm Dia, with 53mm Dia Soft
ZI 3096J Perforated Plate, 148mm Dia, with Adjustable Stem and Lock Nut
ZI 3096K Metal Tripod for Dial Gauge
ZI 3096L Cutting Collar
ZI 3096M Rammer 2.6Kg, 310mm Controlled Drop
ZI 3096N Rammer 4.9Kg, 450mm Controlled Drop
ZI 3096O S Type Load Cell Capacity 50 kN
ZI 3096P LVDT, 25 mm Travel, 0.01mm Least Count (Optional Extract)

Advanced Digital Precision

With a high-resolution digital encoder and LCD display, this CBR Test Apparatus ensures meticulous measurement of both load and penetration. The instantaneous response time, combined with 0.01 kN resolution, delivers consistently accurate data-necessary for critical geotechnical assessments.

User-Friendly Operation and Data Management

The apparatus offers semi-automatic operation with automatic data acquisition, digital calibration, and simple PC connectivity via USB or RS232. Users can efficiently conduct and store up to 1000 tests, facilitating streamlined reporting and analysis for laboratory environments.

Robust Safety and Compliance

Equipped with advanced safety features such as overload protection and an emergency stop, the equipment is designed for safe laboratory use. Compliance with IS 2720, ASTM D1883, and BS 1377 standards ensures results are accepted for all major roads and highway soil testing requirements.

FAQ's of Digital California Bearing Ratio Test Apparatus:

Q: How does the Digital California Bearing Ratio Test Apparatus measure soil strength?

A: This apparatus measures the resistance of a soil sample to penetration using a digital encoder, displaying both the applied load and penetration depth on a digital LCD. The data collected enables precise calculation of the CBR value, indicative of soil strength for road and highway subgrades.

Q: What is the process for setting up and conducting a test with this apparatus?

A: Begin by preparing a soil specimen using either manual or mechanical moisture compaction. Place the sample in the supplied CBR test mould, position the penetration piston, and add annular weights as needed. The digital interface guides users through calibration and test procedures, while automatic data logging captures each result.

Q: Where is this CBR apparatus best suited for use?

A: This equipment is intended for indoor laboratory environments-such as geotechnical labs and quality control facilities within universities, research centers, or construction companies-where precise soil evaluation is essential for road and infrastructure projects.

Q: When should digital calibration and safety checks be performed?

A: Digital calibration should be conducted before initial use and periodically, according to lab protocol or manufacturer recommendations, to ensure ongoing accuracy. Safety checks, such as ensuring overload protection and the emergency stop function, should also be verified regularly.

Q: What soil specimen sizes and compaction methods are supported?

A: The apparatus accommodates specimens up to 150 mm in diameter and 175 mm in height, supporting both manual and mechanical moisture compaction techniques, making it versatile for various testing requirements.

Q: How does the built-in data storage and PC compatibility benefit users?

A: With internal memory capable of storing up to 1000 tests and PC connectivity via USB/RS232, users can efficiently manage, analyze, and archive data-streamlining reporting and ensuring traceability for quality assurance and compliance.

Q: What accessories are provided, and how do they enhance the testing process?

A: Accessories include a CBR test mould, penetration piston, and annular weights, which ensure standardized sample preparation and accurate testing. These facilitate repeatable, consistent results aligned with compliance standards.

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