CarbonCure Technologies and Lafarge Canada Inc.
Lafarge ready-mix concrete plants in London and Barrie, Ontario
This project is demonstrating a CO₂ utilization solution developed by CarbonCure at two Lafarge ready-mix concrete plants in Ontario. The process involves CO₂ (captured from industrial operations) being injected during concrete mixing and reacting with lime present in the concrete to form a solid nano-particle called calcium carbonate. The CO₂ is therefore permanently embedded or ‘sequestered’ in the concrete.
CarbonCure’s technology reduces GHG emissions in two ways. The primary way is by directly sequestering CO₂ into concrete and preventing it from being emitted into the atmosphere. The secondary way is by reducing the amount of cement that is needed in the final concrete product (i.e., energy reductions since less cement is being produced). The reason is that according to CarbonCure, the injected CO₂ leads to an improvement in the compressive strength of the concrete.
This demonstration project is expected to be completed in December 2018 and key findings will be shared in early 2019.
For the two Lafarge ready-mix concrete plants where the demonstrations are taking place, CarbonCure has estimated that the annual reductions of CO₂ at each plant could be about 750 tonnes.
If adopted by all of Ontario’s 200 ready-mix concrete plants, the equivalent GHG reductions are estimated at more than 150,000 tonnes annually, or nearly 2 million tonnes through the year 2030. This is equivalent to the amount of CO₂ that 2 million acres of US forest would sequester over one year, or the equivalent of taking almost 500,000 cars off the road annually.
Further details on the project are provided in the video below.
For more information about the demonstration project contact:
Kevin Jones, President and CEO