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India now uses rock dust for cement aggregate since excavating river sand is causing environmental problems. Would concrete buildings help?

• Flogiston 6y ago
  Concrete production emmits 8% of the world co2 pollution. Man-made concrete doesnt help us in this way
  • StavrosK 6y ago
    Does producing concrete use fossil fuels? Not for energy, but in the actual chemical process, like plastic does.
    • Bjartr 6y ago
      Carbon dioxide is emitted as a by-product of clinker production, an intermediate product in cement manufacture, in which calcium carbonate (CaCO3) is calcinated and converted to lime (CaO), the primary component of cement.[1] [1] https://www.ipcc-nggip.iges.or.jp/public/gp/bgp/3_1_Cement_Production.pdf https://www.ipcc-nggip.iges.or.jp/public/gp/bgp/3_1_Cement_P...