AWS used Paebbl material in four precast sandwich panels at a data center in Aragón, Spain, according to Paebbl vice president Ana Luisa Vaz. She said the panels contained a 24% share of the substitute and permanently stored about 200 kg of CO₂.
What went into the four panels
The material used in the panels was Paebbl Rebond 300. Vaz described the roughly 200 kg figure as the amount stored across all four panels.
The 24% figure applies to this Aragón project. Separately, Paebbl said in its June 25, 2026, product announcement that Rebond 300 can replace up to 30% of cement in concrete mixes.
How mineralized CO₂ becomes a concrete ingredient
Paebbl’s process turns captured CO₂ into a mineral powder in reactors. The powder is combined with additives, aggregate and water to make concrete, incorporating the mineralized carbon into a construction material.
AWS, Paebbl and Tecnyconta worked on the panels
AWS introduced Paebbl to Tecnyconta, the precast-concrete company that worked with Paebbl on the panels. Vaz said the companies developed a test plan and validated the material in their laboratories over about two and a half months, followed by additional tests before it was used in the building.
Paebbl and AWS plan further use
AWS reportedly plans to introduce the material progressively in new data centers and logistics buildings worldwide. Paebbl reportedly targets a first production plant in Central Europe in 2028, with projected annual output of 60,000 to 100,000 tonnes of material.
