BBA HAPAS first for Tufflayer SAMI asphalt

We have become the first asphalt supplier to receive BBA HAPAS approval for a stress absorbing membrane interlayer (SAMI) solution.

Our Tufflayer product, an alternative to geogrid asphalt, uses a specially designed polymer modified bitumen (PMB) supplied by Shell Bitumen to achieve optimum flexibility and enhance fatigue resistance. It significantly delays the effects of reflective cracking and protects the lower layers from water ingress, providing further resilience and extending the life of the road.

Adrian Hadley, Technical Head (Asphalt and Aggregates), said: “It’s fantastic to be the first asphalt manufacturer to achieve this milestone. It followed an intensive approval process by the BBA and provides our customers with reassurance of Tufflayer’s quality and performance.”

Tufflayer is ideal for concrete overlays or any site where reflective cracking caused by thermal expansion or heavy trafficking may be an issue. It is easy to lay using conventional paving equipment and, as it avoids the use of geogrids, it reduces on-site equipment and personnel, improving workforce health and safety and reducing whole-life costs.