Swiss researchers have strengthened ageing bridge decks by embedding heat‑activated iron‑based shape memory alloy (Fe‑SMA) bars within an ultra‑high‑performance fibre‑reinforced concrete (UHPFRC) overlay, creating active prestress when the bars are heated. The Fe‑SMA bars contract on activation and lock in compressive stresses as the UHPFRC hardens, improving fatigue performance and crack control without adding significant self‑weight. This approach offers a thin, bonded strengthening layer that can be installed on existing decks with minimal clearance loss and limited traffic disruption.

Circular, UK-made steel is being promoted as a route to cut embodied carbon in buildings and infrastructure while reducing exposure to volatile global supply chains. By using scrap-based electric arc furnace production and designing for disassembly and reuse of beams, columns and plate, contractors can lower lifecycle emissions compared with imported basic oxygen furnace steel. For geotechnical and civil teams, specifying circular steel in piles, retaining structures and frames will increasingly be driven by client net-zero targets and whole-life carbon assessments.

Sripath Technologies is marking 20 years of supplying specialised asphalt additives and modifier technologies to the global road construction and maintenance sector, with a focus on performance and cost efficiency. The company’s portfolio includes products such as rejuvenators and polymer modifiers designed to improve rutting resistance, fatigue life and workability, while enabling higher reclaimed asphalt pavement (RAP) contents. Its long-term commercial track record signals growing confidence in engineered additives as a route to more durable, lower‑carbon pavements without major changes to existing plant or laying practices.