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Send InquiryCalifornia Bearing Ratio Apparatus
Price 1000.0 INR/ Pack
MOQ : 1 Pack
California Bearing Ratio Apparatus Specification
- Application
- Civil Engineering, Highway Labs, Geotechnical Labs
- Capacity
- 5000 kg (typical for laboratory use) Kg
- Core Components
- Load frame, Penetration plunger, Dial gauge, Cutting collar, Spacer disc
- Automation Grade
- Manual or Semi-automatic
- Material
- Steel, Brass, Electronic Components
- Color
- Select (Typically Blue/Grey Frame)
- Feature
- Highly Efficient
- Product Type
- Soil Strength Tester / Pavement Subgrade Tester
- Accuracy
- 100 % %
- Usage
- Thickness design of pavement layers for roads and airports
- Model No
- Power Source
- Manually operated / Electric motor attachment (optional)
- Frequency
- 50 Hz (if supplied with electric motor) Hertz (HZ)
- Classification
- Geotechnical Engineering / Highway Engineering
- Voltage
- 220 V (if with electric motor) Volt (v)
- Temperature Range
- Ambient laboratory conditions Celsius (oC)
- Operate Method
- Automated Penetration: The piston penetrates the sample at a fixed rate, and the corresponding load is measured at 2.5mm and 5.0mm penetration
- Measurement Range
- 0 to 12.5 mm penetration, 0 5000 kg load
- Equipment Materials
- Mild steel frame, Stainless steel rod, Brass/metallic plunger
- Type
- Mechanical, Adjustable Load Frame
- Display Type
- Analog dial gauge
- Dimension (L*W*H)
- Approx. 660 mm x 560 mm x 1067 mm Millimeter (mm)
- Weight
- Approx. 90 kg (depending on configuration) Kilograms (kg)
- Proving Ring Capacity
- 50 kN (customized proving rings available)
- Dial Gauge Least Count
- 0.01 mm
- Plunger Diameter
- 50 mm as per IS:2720 standard
- Cutting Collar Height
- 50 mm
- Test Standard
- Complies with IS:2720(Part XVI), ASTM D1883, BS 1377
- Spacer Disc Thickness
- 47.7 mm
- Loading Speed
- 1.25 mm/min (standard for CBR tests)
- Mould Size
- 150 mm inner diameter x 175 mm height
About California Bearing Ratio Apparatus
California Bearing Ratio Apparatus
The equipment consists one each of the following : Load frame, hand operated , capacity 5000 kg. With high and low rates of travel of the lead screw. Mould made from gun metal/brass, 150mm internal dia x 175mm high, with perforated base plate and extension collar 50mm high. Penetration piston, face dia 50mm with adjustable bracket for penetration dial gauge. Circular metal space disc, 148mm dia x 47.7mm high. With detachable handle. Annular metal weight, 2.5 kg. 147 mm dia with 53 mm dia central hole. Slotted metal weight, 2.5kg. 147mm dia with 53 dia slot. Perforated plate made of gun-metal/brass 148mm dia with adjustable stem and lock nut and a metal tripod for dial gauge. Cutting collar, Rammer 2.6kg weight with drop of 310mm. Rammer 4.89 kg. with drop of 450mm.Supplied with proving ring and dial gauge.
Precision Engineering for Reliable Soil Strength Testing
Constructed from high-quality mild steel, stainless steel rods, and brass, the CBR Apparatus is built for accuracy and longevity. Its analog dial gauge offers high-resolution readings up to 0.01 mm, while the load frame supports penetration loads of up to 5000 kg. Customizable proving rings provide flexibility for specialized testing needs.
Ease of Use and Versatile Operation
The apparatus is suitable for laboratories in academic, research, or field settings. Its manually adjustable load frame and optional electric motor enable rapid setup and operation. Measuring penetration up to 12.5 mm, this equipment supports both manual and semi-automatic testing procedures, ensuring ease of use for a variety of users.
Standards-Compliant and Globally Trusted
Meeting IS:2720 (Part XVI), ASTM D1883, and BS 1377 standards, the CBR Apparatus is trusted by geotechnical professionals and institutions worldwide. Exported, manufactured, and supplied across India, it offers assured quality and compliance for civil engineering projects.
FAQs of California Bearing Ratio Apparatus:
Q: How is the California Bearing Ratio test performed using this apparatus?
A: The CBR test involves compacting soil samples in the provided mould, applying a penetration plunger at a controlled speed of 1.25 mm/min, and recording the resistance using the analog dial gauge and proving ring. Measurements help assess the subgrade strength for road construction.Q: What materials are used in constructing the CBR Apparatus?
A: The apparatus features a durable mild steel frame, stainless steel rods, and a brass or metallic penetration plunger, ensuring longevity and precise measurement under laboratory conditions.Q: When should the optional electric motor attachment be used?
A: The electric motor attachment can be utilized for increased operational convenience in high-throughput laboratories or when consistent loading speed and minimal manual intervention are required. It operates at 50 Hz with a voltage of 220 V.Q: Where is this CBR Apparatus typically utilized?
A: This device is widely used in soil mechanics laboratories, research institutions, civil engineering departments, and construction material testing facilities to determine soil bearing capacity.Q: What is the benefit of using a mechanical analog dial gauge in this apparatus?
A: The analog dial gauge provides immediate and accurate penetration readings with a least count of 0.01 mm, facilitating precise data collection during testing without reliance on digital systems.Q: What is the process of preparing a sample for the CBR test?
A: A soil sample is compacted in the mould with the provided spacer disc and cutting collar. After preparation, the plunger is applied, and the load penetration is measured as per IS:2720 standards.Q: How does compliance with IS:2720, ASTM D1883, and BS 1377 add value to this equipment?
A: Compliance ensures the apparatus meets globally recognized quality benchmarks, providing reliable and universally accepted test results for construction and road engineering applications.
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