SMRTR Science & EngineeringJun 30, 2026Interesting Engineering

World’s first carbon-negative building material traps CO2 for centuries

SMRTR summary

Paebbl's Rebond 300 is the world's first carbon-negative building material, trapping CO2 permanently by mimicking geological mineralization at industrial speed. It replaces 30% of cement in standard concrete, cutting embodied carbon by 40%, and has already been successfully tested on a real construction site in Germany.

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