Carbon capture projects in construction

In late July, major cement producers began scaling up low‑carbon initiatives. Holcim launched a free, virtual Sustainable Construction Academy to train professionals across Latin America, while Heidelberg Materials broke ground on the Padeswood carbon‑capture and storage (CCS) plant at its north‑Wales cement works, targeting 95 % capture of the site’s emissions.

A week later, the focus shifted to commercial‑scale conversion of captured CO₂ into building materials. In Spain, the AGGREGACO2 plant at the Port of Bilbao, operated by Biscay Eco Aggregates, began turning CO₂ and waste‑to‑energy residues into low‑carbon aggregates, with EU Innovation Fund support. Concurrently, researchers at Ohio State University demonstrated a process that uses industrial by‑products to capture CO₂ and produce high‑purity calcite and green hydrogen, offering a pathway to negative‑emission hydrogen production.

Together, the snapshots illustrate a rapid broadening of carbon‑capture efforts in the construction sector—from training and pilot CCS infrastructure to commercial aggregate production and novel waste‑to‑hydrogen technologies.