California Bearing Ratio Apparatus

Name: California Bearing Ratio Apparatus
Brand: AATOUS INTERNATIONAL PVT. LTD.

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MOQ : 1 Number

California Bearing Ratio Apparatus Specification

Surface Treatment
Powder Coated

Operating Pressure
Up to 50 kN

Accessories Type
Dial Gauge, Mould, Penetration Plunger, Weights

Power Source
Manual

Machine Type
Bench Top

Features
Robust construction, corrosion resistance, easy operation

Accuracy
1%

Control System
Mechanical Screw Jack with hand wheel

Automation Grade
Manual

Technology
Mechanical

Type
CBR (California Bearing Ratio) Apparatus

Material
Mild Steel / Stainless Steel Components

Function
To determine California Bearing Ratio of soil subgrade and base

Application
Civil Engineering, Soil Testing, Pavement Design

Voltage
Not Required (Manual Operation)

California Bearing Ratio Apparatus Trade Information

Minimum Order Quantity
1 Number

Supply Ability
04 Per Month

Delivery Time
3-8 Week

About California Bearing Ratio Apparatus

California Bearing Ratio Apparatus

We, Aatous International Pvt. Ltd., have embarked our presence in this industry as a renowned manufacturer and supplier of California Bearing Ratio Apparatus. These apparatus are used for measuring the relative bearing ratio and expansion characteristics of soil in an efficient manner. We manufacture California Bearing Ratio Apparatus in compliance with IS: 2720 (Part XVI) using excellent grade materials and technology. Accurate measurement, low maintenance and compact design are some of the characteristics of our apparatus.

Further Details:

This apparatus is highly useful in determining the load carrying capacity in the field.

The Chief Components Of California Bearing Ratio Apparatus Are :

Bench type single speed load frame of 50 kN capacity
Mild steel mould of 150mm dia. x 175mm height
2.6 kg & 4.89 kg mild steel rammer
2.5 kg annular & slotted weight
Aluminium tripod
Penetration piston
Brass perforated plate with stem and lock nut
Cutting collar and circular spacer disc with detachable handle.
Proving Ring of 10 kN capacity & Dial Gauge of 0.01 x 25mm

Accurate Soil Strength Testing

Engineers rely on this CBR apparatus for reliable measurement of soil subgrade strength, critical for designing highways, runways, and pavement bases. Compliant with international standards, it provides dependable test results necessary for safe infrastructure planning.

Durable Design and Simple Operation

Built with robust powder-coated metals, the apparatus resists wear and corrosion. Its manual screw jack mechanism and clear dial gauge offer easy and efficient operation, making it suitable for labs and field setups without electrical requirements.

Comprehensive Accessories and Manual Control

The set includes all essential parts: dial gauge, mould, plunger, and weight sets, streamlining the testing process. Manual load application and mechanical controls ensure consistent results and simplified maintenance.

FAQs of California Bearing Ratio Apparatus:

Q: How is the California Bearing Ratio measured using this apparatus?

A: The apparatus measures CBR by pressing a 50 mm diameter plunger into a soil sample at a controlled rate of 50 mm/min. Force is incrementally applied using weight sets and a mechanical screw jack, and penetration resistance is monitored with a dial gauge to determine subgrade strength.

Q: What are the main applications of the CBR Apparatus in civil engineering?

A: This device is primarily used to assess soil subgrade and base materials for roads, highways, airports, and other pavements. Its results help engineers design foundations and select appropriate materials for construction projects.

Q: When and where should the CBR test be performed?

A: CBR tests should be conducted during the planning and design phases of civil engineering projects, typically in soil testing laboratories or on-site field locations using the bench-top apparatus.

Q: What is the benefit of manual operation and mechanical control for this CBR apparatus?

A: Manual operation with mechanical controls eliminates the need for electricity, allowing the device to be used in remote or temporary settings. It simplifies the testing process and enhances reliability, especially in areas with limited resources.

Q: How does the apparatus ensure accuracy and compliance with standards?

A: The apparatus meets IS 2720 (Part 16) and ASTM D1883 requirements, and is designed for 1% accuracy. Its components maintain consistent load application, penetration measurement, and reliable results over repeated tests.

Q: What process should be followed for using the CBR apparatus?

A: Prepare the soil sample in a cast iron or steel mould, position it under the penetration plunger, and gradually apply load through weights and the screw jack. Record penetration resistance readings from the dial gauge until 12.5 mm maximum penetration is reached, then calculate the CBR value from these measurements.

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