
KIBECO Cleancrete Oulesse – cement-free concrete
The cement-free concrete for a wide range of applications
Faced with ambitious climate targets, the construction industry is challenged to rethink its practices in order to drastically reduce CO2 emissions and the consumption of resources and energy. One promising approach is to replace conventional concrete with cement-free alternatives. In this context, KIBECO Cleancrete Oulesse presents itself as a pioneering, cement-free solution for your construction project.
The binder used, which was developed in collaboration with the ETH start-up Oxara, consists mainly of ground demolition materials, which strengthens the material cycle.
This enables cement-free concrete with strengths of up to 25 MPa and high water resistance, which is ideal for a wide range of applications.
The normative basis is currently being developed and standardized. However, the KIBECO Cleancrete Oulesse is already being used for projects today.

Advantages of the KIBECO Cleancrete Oulesse:
- 0% cement
- Up to 85% circular CO2 reduction
- No energy-intensive firing process
- Reuse of demolition materials
- Variety of application areas up to 25 MPa
Possible uses of KIBECO Cleancrete Oulesse

Floor

Load-bearing walls
FAQ
Do you have any questions about KIBECO concrete? Perhaps you will already find the right answer in our FAQ.
KIBECO Cleancrete Oulesse is an innovative, cement-free concrete specially developed to reduce the environmental impact of construction. It offers a sustainable alternative to conventional concrete for a wide range of applications up to 25 MPa.
In contrast to conventional concrete, KIBECO Cleancrete Oulesse contains no cement, which leads to a significant reduction in CO2 emissions. Despite the cement-free composition, a strength development is achieved that is comparable to that of conventional cement-bound concrete.
KIBECO Cleancrete Oulesse helps to reduce the CO2 footprint as it is produced without cement. This significantly reduces the environmental impact compared to conventional concrete.
KIBECO Cleancrete Oulesse is suitable for lean and draining concrete applications as well as structural concrete for indoor applications.
The Oxacrete Oulesse binder is made up of two components. The first component is finely mixed demolition waste, which serves both as a filler and as an activatable substance. The second component is the activator, which consists of mineral salts.
KIBECO Cleancrete Oulesse is produced like conventional structural concrete in the concrete plant and delivered to the construction site with a truck mixer. It is placed in the formwork and cured as usual. No additional training is required for construction company workers.
Oxara is an innovative startup specializing in the development of sustainable building materials. In collaboration with KIBECO, Oxara has developed cement-free concretes such as KIBECO Cleancrete Nossim and Oulesse, which offer an environmentally friendly alternative to conventional concrete solutions and help to reduce CO2 emissions.
The strategic partnership between Oxara, KIBAG and Holcim aims to expand production and establish Oxacrete Oulesse® across the Swiss construction market. With a focus on resource efficiency and circular economy, the partnership will help reduce the environmental footprint of the construction industry and serve up to 10% of the Swiss concrete market.
- KIBECO Cleancrete Oulesse:
NPK A C20/25 XC1 Dmax_32 or16 K
- KIBECO MIGROX:
Lean concrete eq.CEM150/200/250 with 100% Mixed demolition waste granulate
- KIBECO BEGROX:
Lean concrete eq.CEM150/200/250 with 100% Concrete granulate
- KIBECO PRIMOX:
Lean concrete eq.CEM150/200/250 with 100% Primary granulate
KIBECO Cleancrete Oulesse is already available in all regions via KIBAG with a lead time of 14 days. In Zurich, Oulesse is available from the Regensdorf plant. On our website you will find an overview of projects in which KIBECO Cleancrete Oulesse has already been successfully used. For detailed information and orders, you can contact us directly .
The price difference varies depending on the project and requirements. You can find a detailed overview in our current price list.
Latest references

EWZ field test
As part of a field test in Zurich, a pipe block was constructed using the innovative cement-free lean concrete BEGROX25 Oulesse. The test, which took place from 9 to 12 December 2024, aimed to test the processability, consistence and setting behavior of the cement-free concrete.
The tests were carried out under real conditions and confirm the suitability of the building material for sustainable construction by promoting the reuse of demolition material and avoiding the use of cement.

Skatepark Basel
An exciting project was the skate park in Basel, for which KIBECO supplied the KIBECO Cleancrete Oulesse®. The cement-free, sustainable concrete impressed with its eco-friendly nature and quality.
