O.C.O Technology’s Manufactured LimeStone (M-LS) has
played a key role in helping to secure a prestigious environmental award for
Jackson Civil Engineering.
Jackson took top honours in the Towards Net Zero
category, part of the Environment Agency Flood & Coastal Excellence Awards,
for its work in developing a groundbreaking low carbon asphalt mix used in the
construction of a low carbon cycle path.
O.C.O’s M-LS was one of the components used in the
project, which was built by Jackson for Birmingham City Council as part of the
Bromford Flood Alleviation Scheme.
Speaking at the virtual awards ceremony, Tony
Grayling, Director of Sustainable Business and Development at the Environment
Agency, said: “The judges were really impressed to see that considerations for
low carbon and Net Zero were front and centre from the start.
“The innovative use of carbon negative aggregate on the flood defence
cycle scheme is a great step forward in the right direction and could be
transformational if applied to flood schemes more extensively in the future.”
Early calculations showed that the 2.5km
new low carbon foamed asphalt path, made from recycled aggregates and processed
waste products, could deliver CO2 savings of more than 70 tonnes –
equal to a 90% reduction – compared with using a traditional hot AC20 asphalt
Technology was one of a number of supply chain partners brought together
Jackson on the building project for the Environment Agency, which has already
committed to reaching net zero by 2030.
David Olley, O.C.O’s Aggregates Sales and Development
Manager, has had more than 30 years’ experience in the aggregates sector, and
says he sees the award as an important vote of confidence for M-LS.
“We are very proud of our contribution to this project
and want to thank Jackson both for giving us the opportunity to be involved and
for sharing our faith in the success story that is M-LS,” he said.
“Not only have we been able to show that carbon
negative aggregates have a role to play in sustainable construction and the
road to carbon zero but, just as importantly, they offer a credible alternative
to using up our finite resources of traditional sand and gravel.
“I really feel the tide is beginning to change, people
will have to start looking for alternatives and I think this award will open
their eyes to the fact there is a manufactured product which can be used in
various applications – such as asphalt and Type 1 concrete – which is both
proven to work and is environmentally-friendly.”
In 2020, O.C.O manufactured well over 300,000 tonnes of M-LS across its three UK operations. Until now, it has predominantly been used as a block mix in the construction sector.
The carbon negative aggregate is created by treating Air Pollution
Control residues (APCr) from the Energy from Waste (EfW) sector with
waste carbon dioxide gas. Because more CO2 is permanently
captured than is used in the manufacturing process M-LS has been
recognised as the world’s first carbon negative aggregate.