Public test guide

Marshall Stability and Flow

Measures the load resistance and deformation of a compacted asphalt specimen at a controlled temperature.

Plain-language explanation

What the test tells you.

The project specification controls the exact method and acceptance requirement.

A conditioned cylindrical specimen is loaded diametrically in a Marshall testing head until maximum load.

Compacted asphalt specimen, temperature bath, Marshall loading frame, stability and flow measurement.

Maximum stability load and the corresponding flow or deformation.

Supports asphalt mix design, production control and comparison with project requirements.

Typical test sequence

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