SCRIM

Sideway-force Coefficient Routine Investigation Machine (SCRIM) measures the frictional resistance generated between the road surface and a tyre under wet conditions. The micro-texture on the surface of the aggregate particles and provided by the fines in the mixture is the main contributor to skid resistance at low speeds and the main property measured in SCRIM tests. In combination with the specification of surfacing materials the skid resistance of roads is monitored to identify areas where micro texture is lost and treatment might, therefore, be needed to improve the skid resistance.

  • CSC

The characteristic SCRIM coefficient (CSC) is the measured SFC factored by the Index of SCRIM and corrected for speed and seasonal effects, where applicable.

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