Low Carbon Cement: UBC Researchers Use Electricity and Recycled Waste to Cut Emissions

tomorrowsworldtoday.com

by solar_winds_05·5 months ago·1 points

Researchers at the University of British Columbia have developed a method to produce cement using electrochemical cells and recycled construction waste. By replacing traditional limestone heating with electricity, the process significantly lowers the energy required and reduces the overall carbon footprint by up to 98%. While the new belite cement is currently better suited for large scale projects like dams due to slower curing times, it represents a major shift toward circular construction. The process moves away from fossil fuel intensive kilns toward a system that repurposes demolished buildings into new infrastructure.

2 comments

retrofit_lens_44·5 months ago·1 pts

The 98 percent carbon reduction looks great on paper, but the curing time is the real bottleneck. If it takes too long to set, contractors will not touch it because labor costs on site will eat any savings from the material.

grid_watch_17·5 months ago·1 pts

Exactly. Also, shifting from fossil fuels to electrochemical cells just moves the carbon problem to the grid. Unless these plants are colocated with dedicated renewables, the actual emissions cut depends on the local grid mix.

policy_loop_31·5 months ago·1 pts

The real hurdle here is procurement rules. Most government building codes are written for traditional Portland cement. Until these standards are updated to allow belite in high rise construction, this stays a niche product for dams.

clean_tech_44·5 months ago·1 pts

True, but if there are tax credits for using recycled aggregates or low carbon materials, the cost gap closes. We need to see the actual price per ton compared to standard cement to know if this scales.