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A specialized solution for more efficient backfilling in underground mines

March 2021
Gallery TerraFlow 1
Gallery TerraFlow 1


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, Holcim is serving customers’ upcoming needs for high performing and eco-friendly construction. TerraFlow carries the Holcim 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.

  • /
Label Date March 8, 2021
By Holcim
From Switzerland
Maturity stage Medium and large scale commercialization
Looking For New clients, Visibility

The environmental benefits

  • 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

The Financial benefits

  • 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

Activity Region

  • /

North america

Canada, United States,

  • Headquarters
  • Activity

Company Profile


Building progress for people and the planet

View company profile Solution website
Headquarters 6300 Zug, Switzerland
Contact the Solution Provider Add to Favorites

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. The innovator Holcim has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.