Asphalt Research & Development Facility

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Duraflex

Ideal for customer's looking for a high performance surface course.

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Hot Rolled Asphalt (HRA)

A dense  mixture of coarse aggregate, sand, mineral filler and bitumen. 

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Macadam (Asphalt Concrete)

Bitumen Macadam of Asphalt Concrete is a micture of aggregate, filler and bitumen. 

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Marshall Asphalt (Asphalt Concrete)

These mixes are designed to be highly durable with good rutting resistance.

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Other Solutions

Roadstone, through the CRH Asphalt R&D laboratory, have developed a number of products which offer our further solutions to our customers.

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Porous Asphalt

This is a gap graded mix with a high proportion of high quality coarse aggregates.

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Thin Layer Asphalt - Ultraflex

The aggregate interlock in this material provides good resistance to permanent deformation.

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