The Explorer is a one-of-a-kind search engine that showcases profitable climate solutions from all over the world which are part of an ever-growing, curated, and publicly-accessible database. Select your profile, your needs and climate goals to discover the solutions that fit best with your situation.

Explore Learn more

Cancel Confirm

My Search Alerts

The Solutions Explorer lets you create alerts that match your needs. You can create several alerts and you will receive a notification each time a new Solar Impulse Efficient Solutions is labeled and matches your filters.

Your Search Alerts will show up here.

Sign in to create alerts for your filters and search terms.

Sign in

Don't have an account?

Sign up

My Favorites

The Solutions Explorer lets you shortlist your favorite solutions.

Your favorites will show up here.

Sign in to add a solution to your favorites.

Sign in

Don't have an account?

Sign up

Contact the Solution's Provider

You can contact each Solution’s Provider through the « Solutions Explorer » contact form. The team will also follow up to make sure you’ll have an answer to your request.

Your contact form will show up here.

Sign in to contact the Solution's Provider

Sign in

Don't have an account?

Sign up

My Account

Sign in

Don't have an account?

Sign up


A resource saving concrete made of processed mixed granulates from demolition rubble

May 2021
Gallery EcoPlanet/Susteno 1
Gallery EcoPlanet/Susteno 1


Susteno is the first resource-saving concrete in Switzerland made of high quality processed mixed rubble from demolition projects. 85% of demolition rubble is recycled in Switzerland, and Holcim found a way to close the material cycle for the remaining 15% that would otherwise be landfilled. This conserves scarce landfill space (around 1200 truck loads in 2020), conserves primary raw materials, and saves 10% CO2 compared to a CO2-optimised Swiss mass concrete (30% vs a type I concrete). The CO2 savings in 2020 were equivalent to 4700 people flying from Zurich to New York. Susteno is also a solution for companies that recycle concrete and mixed demolition waste and are looking for a sustainable alternative to landfilling the unusable fine fractions. Susteno is the next generation of mass concrets with a more ecological footprint and complies with all norms. This solution demonstrates how the construction sector can play a key role in the transition to a circular economy.

  • /
Label Date May 10, 2021
By Holcim
From Switzerland
Maturity stage Medium and large scale commercialization
Looking For Credibility

Implementation Stories

EcoPlanet/Susteno by Holcim
Implemented by HSG Foundation in Saint Gallen (Switzerland) in 2016

The HSG Foundation – a non profit which aims to promote the University of Saint-Gallen in its development as one of the leading international business universities – used the cement as part of their new learning center construction. They called upon Sou Fujimoto architects for the design and Holcim to supply Susteno 4 materials for the building. For the realization of “the SQUARE” premises, approximately 1,000 tons of Susteno were used among other Holcim materials (EvopactPLUS and EvopactZERO).


By using holcim ecoplanet / susteno forthisproject,a 10% co2 reduction was achieved compared to the use of an optimized swiss mass cement


The environmental benefits

  • Saves 10% CO2 compared to a CO2-optimised Swiss mass concrete. In 2020, this equates to 4700 people flying from Zurich to New York.
  • The first concrete that includes around 20% recycled demolition waste
  • In 2020 over 1000 truck loads of demolition rubble were recycled through Susteno

The Financial benefits

  • Can deliver up to 7% higher property value
  • Construction companies and concrete producers have a differentiating competitive advantage when project owners ask for sustainable solutions or even demand Susteno in tenders

Activity Region

  • /



  • 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.