About Laboratory California Bearing Ratio Apparatus, Motorised
Specification:
California Bearing Ratio (CBR) test was developed by The California State highway department. CBR Load Frame is used to evaluate the potential strength of course materials, for use in road construction.
TheCBR Load FrameConsists of :
ZI 3066ALoad Frame, 50kn ( 5000 kgf) Capacity, 3 Speeds
ZI 3066BZinc Coated Mild Steel Mould 150mm ID x 175mm high
ZI 3066CPerforated Base Plate for ZI3074- 2 Zinc Coated Mild Steel Mould
ZI 3066DZinc Coated Mild Steel Extension Collar, 150mm ID x 50mm high
ZI 3066EPenetration Piston, 50mm face dia
ZI 3066FAdjustable Bracket, for Penetration Dial Gauge
ZI 3066GCircular Metal Spacer Disc. With detachable handle, 148 mm dia x 47.7 mm high time.
ZI 3066HAnnular Metal Weight, 2.5kg, 147mm dia with 53 mm dia central hole
ZI 3066IPerforated Metal Weight 2.5 kg. 147mm dia, with 53mm dia soft
ZI 3066JPerforated Plate, 148mm dia, with adjustable stem and lock nut
ZI 3066KMetal Tripod for Dial Gauge
ZI 3066LCutting Collar
ZI 3066MRammer 2.6kg, 310mm controlled drop
ZI 3066NRammer 4.9kg, 450mm controlled drop
ZI 3066OProving Ring Capacity 50 KN
ZI 3066PDial Gauge, 25 mm travel, 0.01mm least count Optional Extras:
ZI 3066QAnnular Metal Weight 5 kg, 147mm dia with 53 mm dia central hole
ZI 3066RSlotted Metal Weight 5 kg 147mm dia with 53mm dia slot
Motorised Precision for Reliable Soil TestingThis apparatus streamlines the CBR testing process with a fixed-speed motor and adjustable yoke, allowing consistent and repeatable penetration tests. The robust steel and powder-coated cast iron construction ensure longevity and adaptability in demanding laboratory environments. Immediate analog dial responses and 1% accuracy provide dependable results for soil evaluation.
Comprehensive Accessories and Safety FeaturesEquipped with key accessories such as a dial gauge, penetration piston, split mould, and both annular and perforated base plates, this CBR apparatus covers all standard laboratory testing needs. Safety is enhanced by overload cutoff and an emergency stop function, while the anti-corrosive finish ensures long-term performance and low maintenance.
FAQ's of Laboratory California Bearing Ratio Apparatus, Motorised:
Q: How is the Laboratory CBR Apparatus used for soil testing?
A: The apparatus is used by placing a soil sample into the cast iron mould, which is then mounted in the machine. The penetration piston applies a fixed-rate load (1.25 mm/min) through motorised control, while the dial gauge records the penetration for CBR value calculation. Essential accessories streamline the testing process.
Q: What makes this CBR Apparatus reliable for laboratory applications?
A: Reliability is ensured by features such as sturdy powder-coated cast iron construction, precise analog measurement (0.01 mm resolution), adjustable loading yoke, and fixed test speed. The apparatus offers 1% accuracy with an immediate response time for trustworthy test results.
Q: When should this apparatus be used in soil analysis?
A: It should be used whenever the California Bearing Ratio of sub-grade soil needs to be determined, typically before infrastructure projects like road construction. It is best suited for laboratory environments requiring precise control and safety features.
Q: Where can this equipment be installed and operated?
A: The apparatus is designed for indoor, bench- or table-mounted use in soil and civil engineering laboratories, operating efficiently at ambient temperatures (5C to 40C) and humidity 80%.
Q: What is the process for conducting a test with this apparatus?
A: The process includes preparing and placing the soil specimen in the mould, assembling necessary accessories (such as spacer disc and base plates), starting the motorised penetration at the fixed speed, and recording measurements from the dial gauge until the required penetration is achieved.
Q: What benefits does the device offer for laboratory operations?
A: Benefits include semi-automatic motorised operation for efficiency, high measurement accuracy, enhanced safety (overload and emergency stop), complete accessory kit, and durable anti-corrosive finish. These features improve workflow, safety, and result reliability for soil testing professionals.
Q: How is safety ensured during the test operation?
A: Safety is managed through built-in overload cutoff and an emergency stop feature, which protect both the user and machine during test procedures. The sturdy, anti-corrosive powder-coated surface further contributes to secure and dependable long-term use.