Cbr Machine For California Bearing Ratio

A CBR machine (California Bearing Ratio machine) is used to determine the strength of subgrade soil and base materials for road and pavement design, following the California Bearing Ratio Test. Key Features: • Rigid loading frame with motorized or manual operation • Penetration piston (50 mm diameter) for applying load • Proving ring or load cell for accurate load measurement • Dial gauges to measure penetration depth (up to 12.5 mm) • Adjustable loading rate (standard: 1.25 mm/min) • Compatible with CBR moulds and accessories The machine applies controlled pressure to a soil sample, and the resistance is measured to evaluate its bearing capacity, which is essential in pavement design and construction quality control.