Image: Aggregate Industries
Aggregate Industries has enhanced its sustainability efforts with new advancements in achieving 100 per cent recycled asphalt.
Aggregate Industries has revealed its asphalt division has set new records in the circular economy sector by repurposing recycled aggregate materials into a new surfacing material.
The new road surfacing material has been used in roads and pavements. The Aggregates Industries team is working with non-hazardous, contaminated waste material to produce binder course made up of >95 per cent recycled materials. The waste material is first carefully studied to gain an intricate understanding of its qualities, before it is cleaned, crushed and re-graded into recognised asphalt aggregate constituents.
Starting with 20mm all-in aggregates, the recycled material is fed into the asphalt plant process with a 40 per cent recycled content 5 per cent of which is recycled bitumen. The mix was designed so only the only non-recycled component left was the residual bitumen, aiding the company’s mission of achieving 100 per cent recycled asphalt.
“Throughout our entire business we place circularity at our core and in line with this, year on year, the proportion of recycled asphalt we use has increased,” said Michelle Addison, Midlands key account manager for Asphalt at Aggregate Industries.
“As natural resources become more scarce, all areas of construction need to be making strides to build new from old.
“While we have already for some time been regularly using reclaimed asphalt, we can now incorporate what was once considered a waste material into the process. The only element left to conquer is the 3-5 per cent of virgin bitumen in the end product, something that our experts have their sights firmly set on.”
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