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Living bacteria and sand used to make eco-friendly cement without heat

The process uses live bacteria and robotic fabrication to form building parts at room temperature, a method researchers say could cut cement emissions.

Summary by Interesting Engineering
Researcher Karen Antorveza Paez at ETH Zurich has combined microbially induced calcium carbonate precipitation with 3D printing and robotics.

9 Articles

3DPrint.com | The Voice of 3D Printing / Additive Manufacturing3DPrint.com | The Voice of 3D Printing / Additive Manufacturing
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ETH Zurich Uses Bacteria to 3D Print Facade Elements - 3DPrint.com

ETH Zurich has used bacteria to build facade elements. The living bacteria effectively bind sand together by forming calcium carbonate through the precipitation of calcite crystals. The work was carried...

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Bacteria Instead of Cement: Researchers Make Sand 21 Times More Bend-Resistant and Produce First Components – without Heat

ETH researchers solidify sand with bacteria instead of cement. The first components are produced without a kiln, but supporting concrete remains superior.

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Interesting EngineeringInteresting Engineering
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Living bacteria and sand used to make eco-friendly cement without heat

Researcher Karen Antorveza Paez at ETH Zurich has combined microbially induced calcium carbonate precipitation with 3D printing and robotics.

·New York, United States
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Новое ВремяНовое Время

The Martian Idea. In Switzerland, Bio-Cement Is Grown with Live Microbes that Hardens at Room Temperature

An architect from Switzerland forced soil bacteria to bind sand into solid building elements without high-temperature firing.

·Kyiv, Ukraine
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Interesting Engineering broke the news in New York, United States on Monday, October 19, 2026.
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