Cement and Concrete, NREL Researchers Pave the Way for Carbon-Negative ConcreteBUILD’EM Greener Construction Industry
Outside the National Renewable Energy Laboratory’s Research Support Facility and its Café, there are two curious brick pavers unlike the others nearby.
At around the same time, Meyer learned about the large amount of waste lignin that is produced every year, primarily from pulp and paper processes, which is also expected to be produced from biorefineries in the future. “It’s basically concrete but carbon negative. If we’re very optimistic, it could affect as much as 7% of world emissions while being economically competitive,” Meyer said.
“Equity is a significant aspect,” Meyer said. “Lignin is everywhere, and sourcing it locally is feasible. The curing process requires low temperatures, making it accessible even in regions without access to the grid. It’s a simple and adaptable solution.” As the team at NREL continues their innovative work and earns further funding, they hope to expand their lignin research to create sustainable, carbon-negative alternatives for construction.
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