The cement and concrete industry is one of the most underappreciated sectors in the fight against climate change. Studies have indicated that cement production produces more than twice as much carbon dioxide as flying or shipping and is responsible for 8% of global emissions.
But despite the severe harm it causes to our environment, it continues to play a crucial role in our daily life. For the construction of homes, buildings, and other structures, we rely on cement. To meet the need for infrastructure, more than 4 billion tons of cement are produced annually. Currently, Montreal-based technology company CarbiCrete is using concrete as a climate solution.
Unique Carbon Removal Tech
Thanks to the innovative carbon removal technology developed by CarbiCrete and initially reported by interesting engineering, concrete without cement and with a carbon negative balance may be produced from industrial wastes and absorbed carbon dioxide.
The chief marketing officer of CarbiCrete, Yuri Mytko, claims that for every ton of concrete produced using the CabriCrete technology, 150 kilograms of carbon dioxide are reduced or eliminated
Precast building materials are now a viable alternative to cement-based ones in terms of durability, cost, and environmental impact.
The company offers the steps and help needed for concrete producers to incorporate this replacement technology into their existing facilities. The process is identical to producing cement-based concrete except for two key points (Jace Dela Cruz 2022).
One is that powdered steel slag, a byproduct of the steel-making process, is used in place of cement which serves as the mixture’s binder.
In addition, a bespoke, sealed absorption chamber is used to cure the concrete rather than heat or steam.
Throughout this carbonation process, the CO2 is retained and converted into stable calcium carbonates, filling in the gaps in the matrix to produce a thick structure and bolster the concrete. Because its method can be implemented into any existing concrete manufacturing facility, CarbiCrete wants to license its carbon-negative concrete technology to manufacturers worldwide.
West, S., 2001. Improving the sustainable development of building stock by the implementation of energy efficient, climate control technologies. Building and Environment, 36(3), pp.281-289.
Oldewurtel, F., Parisio, A., Jones, C.N., Morari, M., Gyalistras, D., Gwerder, M., Stauch, V., Lehmann, B. and Wirth, K., 2010, June. Energy efficient building climate control using stochastic model predictive control and weather predictions. In Proceedings of the 2010 American control conference (pp. 5100-5105).
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