Built from the core: designing infrastructure that lasts

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Bridges, highways, tunnels and slopes are built to last for decades. However, evolving environmental conditions mean new and existing infrastructure has to be even more resilient. Heavier traffic, more frequent storms, heat waves and flooding all put extra stress on critical structures. At the same time, the construction sector is under pressure to cut CO₂ emissions and material use, while keeping projects affordable and downtime under control. The question is no longer just how to build, but how to keep assets in service longer without pouring in large amounts of new concrete and steel.

In this context, the way we reinforce and protect infrastructure matters more than ever. Steel wire and strand solutions are often hidden from view, inside concrete, buried in slopes or embedded in structural systems, but they help determine how long assets remain safe, reliable and economical to operate.

Owners and operators of infrastructure are pulled in two directions. On the one hand, they need assets that can cope with more extreme loads: steeper temperature swings, more intense rainfall, stronger winds and more traffic. On the other hand, they need to reduce the CO₂ footprint of projects and make better use of limited budgets. This is not just about today’s budget line; it is about the total cost of ownership over decades.

In practice, this means extending the life of existing structures wherever possible, rather than replacing them. It means designing new assets that are more resilient from day one. Failures and unplanned interventions are costly; they disrupt mobility and drive up maintenance budgets, but can also undermine public trust. Every reinforcement choice influences that long‑term picture, and the total cost of ownership, down to the type of wire, strand or mesh that is hidden deep inside.

Slopes, retaining walls and riverbanks form the first line of defense against landslides, erosion and other climate‑related risks. When these systems fail, the impact on roads, railways or nearby communities can be severe.

Welded gabion structures use steel wire meshes filled with stone to stabilize soil and protect against erosion. Because they are exposed to rain, temperature cycles and often de‑icing salts or splash water, the wire has to combine mechanical strength with long‑term corrosion resistance. In these aggressive environments, coating technology plays an important role: advanced zinc‑aluminum‑based coatings help protect the wire, so that the gabions keep their structural function over many years.

The construction sector is also under pressure to deliver substantial, verifiable CO₂ reductions. Bezinal^® welded gabion wire is designed to support exactly that. Gabion structures require significantly less transport, are faster to install, and deliver a service life of more than 50 years thanks to their robust Bezinal^® coating. Life‑cycle assessment shows that they can reduce total CO₂ emissions by more than 50% compared with conventional concrete walls – and by up to 65% when the wire is produced using low‑carbon‑footprint raw materials. That is why Bezinal^® welded gabion wire is part of Bekaert’s inhera^® range of selected sustainable solutions.

These systems also offer environmental benefits. Their open structure allows vegetation to grow through, helping slopes blend back into the landscape and supporting biodiversity, while still providing mechanical protection. When specified and installed correctly, welded gabions can boost both climate resilience and the visual and ecological quality of infrastructure corridors, turning what could be a hard barrier into a more natural‑looking part of the landscape.

Climate‑resilient, low‑carbon infrastructure greatly depends on choices with low visibility: how slopes are stabilized, which reinforcement systems are used in foundations and how long critical components such as stay cables are expected to last.

Solutions like welded gabion systems and durable stay‑cable strands show how steel wire technology can support an approach to creating infrastructures that combine safety & durability with sustainability/low CO2 emissions. When these components resist corrosion longer, keep their strength over time and allow leaner designs, infrastructure will need fewer heavy interventions over its lifetime. That means less new material, fewer major work sites and lower emissions from large repair campaigns.

Ultimately, building infrastructure that can cope with harsher conditions is about designing for the long term. When the wire‑based components at the heart of these systems are engineered and specified with durability in mind, bridges and slopes can keep doing their job quietly in the background, supporting safer mobility and more resilient communities for decades to come.