Sales outlet identified for high-carbon PFA
Electrostatic separation technology has enabled ScotAsh to build its reputation as a manufacturer of high quality, sustainable cementitious products - but finding a suitable application for the high-carbon fraction has been a challenge.
Now the high-carbon ash is being used successfully as an alternative filler to limestone dust in Stone Mastic Asphalt. It is also being used by Linear Quarry Products Ltd in Durafoam - foamed bitumen Macadam made from 95% recycled materials.
Product Development Manager Bill Armstrong said: "The blacktop application is a major breakthrough. The SMA product has performed extremely well at a quarry, where large numbers of 40-tonne trucks are battering over it daily, yet it is unmarked.
"We are very excited about the potential this offers to increase useful recycling and will publish the results of flexural strength tests later in the year."
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