Gallery TerraFlow 1
Gallery TerraFlow 1
March 2021
By Holcim
Headquarters 6300 Zoug, Suisse

TerraFlow - A specialized solution for more efficient backfilling in underground mines

TerraFlow is serving customer's needs for highly durable construction solutions in extremely challenging underground applications such as tunnels and mines. TerraFlow offers a superior life cycle performance and cost while reducing the carbon footprint by 80% and the raw material consumption by 65%. Through TerraFlow, LafargeHolcim is serving customers’ upcoming needs for high performing and eco-friendly construction. TerraFlow carries the LafargeHolcim EcoLabel, delivering transparency about the sustainable profile of products and raising awareness for solutions that ultimately will bring the construction sector to zero carbon and zero material consumption.

Key features

  • A specialized engineered blend of cementitious with 75% slag content and 25% General Use Limestone cement
  • Applied on soil solidification for tunnels, underground ducts and in mines, where superior strength is required and a high sulphate concentration prevents the economic application of Ordinary Portland Cement
  • Mixed at a soil treatment rate of 8% to achieve the targeted soil stabilization
  • Offers a CO2 reduction of 80% or more compared to a local average Ordinary Portland Cement, while offering superior technical performance and durability
  • Use 65% of recycled materials, saving natural resources and preventing waste from landfill
  • Carries the LafargeHolcim EcoLabel which provide full transparency about the sustainable performance and create a market pull asking for the best sustainable offer


  • Offers higher construction performance under challenging external conditions, which can hardly or not at all get achieved with the mainstream alternative solution.
  • Offers tailored and tested construction solutions which lead to life cycle cost savings by enhanced longevity and durability with a payback period for clients in less than one year
  • Carbon cost saving of 5 EUR/ton assuming a carbon price of 50 EUR/t and 6-7% cost saving assuming an average cement price of 55 CHF/t

Maturity Stage

  • Medium and large scale commercialization
  • Small scale commercialization
  • Initial market commercialization
  • Prototype testing in the real world
  • Prototype testing 1:1 in the lab

Looking For

Activity Region

  • /

North america

Canada, United States,

  • Headquarters
  • Activity

The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances.