100% Circular Sulfur Concrete

Designed for the Planet and the Climate 

At THIOMATERIALS, we are driven by innovation and sustainability. This ambition has led to the development of a new and innovative material: sulfur concrete, marketed under the name THIOCRETE®. The name combines “thio” (Greek for sulfur) and “crete” (from concrete), highlighting the material’s unique composition. 

Unlike traditional concrete, THIOCRETE® contains no cement or water. Instead, sulfur is used as the sole binder, resulting in a material with exceptional properties. 

Our cement-free concrete stands out for its remarkable acid resistance, robust mechanical performance, and most importantly, its outstanding environmental credentials. It is 100% circular and can be melted and reused endlessly using very little energy. Its CO₂ emissions are among the lowest of all concrete types. 

By choosing THIOCRETE®, you are actively contributing to the ecological transition and helping to build a more sustainable world. With THIOMATERIALS, you’re not just ready for the future — you’re helping to shape it. 

Pioneering Sustainable Materials for Tomorrow’s Infrastructure 

THIOMATERIALS specializes in the development and production of innovative precast materials made from circular sulfur concrete, designed specifically for infrastructure applications. 

Every innovation begins with a focus on sustainability — our goal is to deliver end products that meet the highest functional standards while minimizing environmental impact. 

THIOMATERIALS is proud to be the first in the world to develop and industrialize circular sulfur concrete, offering a true alternative to traditional cement-based solutions. 

Our operations are supported by a state-of-the-art production facility in Baudour, Belgium, and an advanced laboratory in Laakdal, where research and quality control go hand in hand. 

Our latest news items

Closing the Loop: Sulphur Concrete Sleepers Recycled After Ten Years in Use

In January 2024, a symbolic milestone confirmed the long-term promise of sulphur concrete: ten sleepers installed in January 2014 were...

A New Standard in Recycling: Sulphur Concrete Comes Full Circle

The Baudour site doesn't just produce sleepers—it recycles them too. In a breakthrough for circular construction, THIOTRACK demonstrated how used sleepers can be reheated and remolded into new ones, with no loss in performance. ♻️ This innovation proves that true circularity in heavy infrastructure is possible. 📹 Watch the recycling demo video to see how used materials are brought...

New Factory Launch: A Production Powerhouse in Baudour

In 2022, THIOMATERIALS inaugurated its industrial production site for sulphur concrete in Baudour (Saint-Ghislain), marking a new chapter for...

Infrabel: First in the World to Go Green on the Tracks

Infrabel is leading the way in railway sustainability by becoming the first infrastructure manager worldwide to green...