Saint-Gobain says Microsoft AI helped generate cement-additive ideas in six weeks

Saint-Gobain says its researchers reached new ideas for lower-carbon cement additives in about six weeks using Microsoft’s AI research platform. The candidate molecules are still being tested. Microsoft published the customer account on October 20, 2026; the reported speed gains come from Saint-Gobain, not an independent assessment.

From a literature search to new chemistry

The team gathered 62,000 patents and 44,000 scientific abstracts using Microsoft Discovery. Researchers then narrowed and analyzed that material to develop several hypotheses about ingredients worth testing.

Discovery lets scientists direct AI agents—software systems assigned research tasks—to search literature, connect information, generate hypotheses, design experiments and run analyses. For this project, Saint-Gobain program manager Mojdeh Rastgoo-Lemaitre said searching beyond construction research surfaced molecules the scientists would not otherwise have considered.

Rastgoo-Lemaitre’s largest time-saving estimate concerned creating the knowledge base, rather than the full process of developing an additive:

Without using this technology, it would have taken our researchers a year to create the knowledge base. Using AI, it took us a couple of hours.

Mojdeh Rastgoo-Lemaitre, digital acceleration program manager at Saint-Gobain

The target is less clinker

Clinker is the binding ingredient in cement. It is made by heating limestone to very high temperatures, a major source of cement production’s carbon emissions. Saint-Gobain wants a new additive that would reduce the amount of clinker needed while also making the cement stronger.

The company says its existing cement additive EnviroAdd already reduces the need for clinker by about 20%. The new research seeks to push that reduction further. If the candidates withstand scrutiny, a potential solution would move to a development team for testing under physical conditions.

An early-access collaboration

Saint-Gobain was among Discovery’s first private-release customers in March 2026. Teams from both companies worked on fine-tuning the platform. Microsoft’s participating engineers came from its Frontier Company business, which places engineers inside customer organizations to deliver AI solutions.

The companies signed a framework agreement in July to accelerate work on sustainable construction materials and processes. In an October 20 Microsoft France announcement, Microsoft said Saint-Gobain was continuing to extend its use of Discovery following that agreement.