CBR Testing Machine

CBR Testing Machine – California Bearing Ratio Test Apparatus

The CBR Testing Machine (California Bearing Ratio) is a vital tool used in soil strength assessment, especially for evaluating subgrade, sub-base, and base course materials in roadway, pavement, airport runway, and railway construction. Designed in compliance with global standards, including BS 1377, ASTM D1883, AASHTO T193, and EN13286-47, this machine delivers accurate and reliable results in both laboratory and in-situ settings.

With options for motorized, manual, or mechanical operation, this CBR test apparatus is ideal for geotechnical professionals seeking dependable performance for soil bearing capacity tests. The test replicates field conditions to provide critical data for thickness design and pavement layer strength analysis.

Key Features of CBR Testing Machine

Accurate Load Measurement: Equipped with calibrated load cells or proving rings for precise force application.

Lab and Field Compatibility: Models available for both laboratory use and in-situ testing of soils.

Manual or Motorized Options: Choose from motorized, mechanical, or hand-operated configurations.

Controlled Penetration Rate: Penetrates at 1.25 mm/min as per standard testing requirements.

Digital or Dial Readouts: Offers a choice of digital indicators or dial gauges for penetration and load measurements.

Heavy-Duty Steel Frame: Built with a rigid steel construction to ensure durability and long-lasting accuracy.

Applications of CBR Testing Machine

Pavement Design: Determines the thickness of road layers based on bearing capacity.

Airport Runways: Assesses subgrade suitability for high-load bearing surfaces.

Railway Construction: Evaluates soil strength under dynamic and static rail loads.

In-situ Soil Testing: Provides a fast and empirical soil strength value on site.

Foundation Engineering: Assists in analyzing soil support for foundations and embankments.