Road Making (Unbound)
Road Making (Unbound)

For enhanced surface quality and longer lasting skid resistance

Steel slag has inherent properties that make it ideally suited for use as a surface course for roadmaking.  Apart from its exceptional strength and durability, which extends the life of the road and lengthens the road maintenance intervals, it achieves high skid resistance and maintains this throughout the life of the road as a result of its capacity to regenerate its surface roughness over time.

From an environmental standpoint, using steel slag avoids the use of quarried materials and landfill of residual slag product. We partner with councils, local authorities and contractors nationwide to deliver durable roads for a sustainable world.


Any rock type general fill material that is capable of increasing the load bearing capacity of the subsoil beneath a new road construction.

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Sub Base

The crushed rock material forming the layer in a road, directly above the formation level or capping layer in unbound road making.

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The material forming the layer of road construction directly above the sub-base.  

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