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News Queens Carbon to build carbon-neutral alternative cement pilot plant at Buzzi Unicem USA’s Stockertown cement plant

Queens Carbon to build carbon-neutral alternative cement pilot plant at Buzzi Unicem USA’s Stockertown cement plant

Written by Global Cement staff 01 May 2025
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US: Queens Carbon has secured US$10m in seed funding to scale up production of its novel cement and supplementary cementitious materials (SCMs). The start-up will build a 2000t/yr demonstration plant at strategic partner Buzzi Unicem USA's Stockertown, Pennsylvania, cement plant. The plant will demonstrate Queens Carbon’s low-energy Q-Reactor technology, which employs novel hydrothermal chemistry, with the help of steam and pressure, to combine standard cement feedstocks into carbon-neutral hydraulic cement and SCMs. The company’s flagship product, Q-SCM, is capable of replacing up to 50% of cement in concrete mixes. Queens Carbon says that it will now also begin preparations for its first full-scale commercial plant.

Buzzi Unicem USA was among investors in the seed funding round, led by Climate technologies investor Clean Energy Ventures, with participation from fellow venture capital firm Plug and Play.

Queens Carbon CEO Daniel Kopp said "With support from Clean Energy Ventures, Buzzi Unicem USA and the US Department of Energy, we're building next-generation technology and assembling the creative talent needed to drive industry revenues to move cement innovation forward and significantly reduce CO2 emissions from cement production, all without a green premium."

Luigi Buzzi, Chief Technology Officer at Italy-based Buzzi, said "We know that achieving our goal of net-zero carbon emissions by 2050 demands forward-thinking solutions to enhance both our operations and our environmental performance.”

Last modified on 07 May 2025
Published in Global Cement News
Tagged under
  • Queens Carbon
  • Buzzi
  • US
  • Buzzi Unicem USA
  • Pennsylvania
  • startup
  • Finance
  • funding
  • pilot
  • demonstration
  • Research
  • net zero
  • decarbonisation
  • CO2
  • Sustainability
  • supplementary cementitious materials
  • Clean Energy Ventures
  • Plug and Play
  • Americas
  • GCW708
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