Digital Marshall Stability Test Apparatus

About Digital Marshall Stability Test Apparatus

Key Features

• Digital display for stability (kN) and flow (mm)
• High-precision load cell and displacement sensors
• Constant loading rate of 50.8 mm/min
• Peak load hold and automatic data recording
• PC interface (in advanced models)
• Heavy-duty loading frame construction

Technical Specifications

• Capacity: Up to 50 kN
• Flow Measurement: 025 mm via LVDT
• Resolution: Up to 0.01 mm displacement
• Test Speed: 50.8 mm/min
• Power Supply: 230V, 50Hz
• Standards: ASTM D1559, AASHTO T245

Applications

• Bitumen and asphalt testing laboratories
• Highway and road construction projects
• Civil engineering colleges and research centers
• Quality control of paving materials

Working Principle

A cylindrical bitumen specimen is placed in a breaking head and subjected to a gradually increasing load. The apparatus records the maximum load (stability) and the deformation (flow) at that point, which are critical for designing durable asphalt pavements.