This study explores the production of high-strength bio-concrete, a CO2-neutral alternative to conventional concrete, using a combination of methods including urease-active calcium carbonate powder (UACP), optimized aggregate packing density, and an automated stop-flow pressure injection method. The researchers achieved a compressive strength of 52.5 MPa and a cementation depth of 140 mm, exceeding previous results and suggesting potential for use in load-bearing building components.
Publisher
npj Materials Sustainability
Published On
Dec 13, 2023
Authors
Maiia Smirnova, Christoph Nething, Andreas Stolz, Janosch A. D. Gröning, Daniele P. Funaro, Erik Eppinger, Manuela Reichert, Jürgen Frick, Lucio Blandini
Tags
bio-concrete
high-strength
sustainable construction
CO2-neutral
cementation depth
urease-active calcium carbonate
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