Billion of tons of excavation materials, removed to build foundations, are landfilled each year. Oxara transforms these excavation earth materials: waste into valuable resource and produces sustainable building materials using a unique admixture technology.

Two billion people lack access to decent and dignified affordable housing. The use of appropriate technology, locally available resources and collaboration with local partners are key to achieving sustainable systems. Concrete is no longer the go to solution, as we are facing climate change and the cement industry is one of its biggest contributors. Local, non polluting and affordable solutions are urgently needed.

Oxara aims to facilitate the re-use of construction waste (excavation material) and enables access to sustainable and affordable housing. Rethinking building materials: Oxara's patented, cement-free admixture technology transforms waste into an environmentally friendly and cost-effective building materials. The additives are mineral-based chemicals, non-toxic and non-hazardous. 

Oxacrete©, for instance, is mixed with excavation materials and/or sludge in conventional concrete infrastructure to produce cement-free concrete or Cleancrete©.

Oxacrete© improves the workability of the earth mixture for easier processing and casting, then accelerates the hardening in order to remove the formwork after 1-3 days.

Cleancrete© has 90% CO2 reduction and cost reduction compared to conventional concrete.

Referring to current earth construction techniques, Oxara technology accelerates earth construction time.

Oxara as a contractor consists of delivering access to sustainable and affordable housings worldwide based on the cement-free concrete technology.

Partnerships​ and collaboration are key: teaching strategy, constructive systems based on material performances, and required infrastructures to implement the technology within the local context is developed to disseminate the knowledge among builders, masons, architects, and local stakeholders.