Carbon Concrete – a sustainable solution for the infrastructure
Themes: Building & Infrastructure
Whether bridges, tunnels, roads or canals - the infrastructure is the foundation of our mobility and ensures our basic supply. Required in everyday life, we only recognize their significance when something fails. Closure of bridges cause traffic jams, potholes in the roads damage our vehicles in the long run. But even worse is the absence of vital media such as water or electricity. The associated infrastructure is also referred to as critical infrastructure and is therefore predominantly in municipal or public hands.
The planned service life of reinforced concrete structures is often not achieved due to corrosion, de-icing salt attack or mechanical impact. Refurbishment or replacement construction is usually associated with high costs. Avised objectives of longevity and safety move in a tension field of economy and material efficiency.
These increasing uncertainty factors can be cushioned by material innovations. High-performance composite materials can offer increased durability and thus safety.
Carbon reinforced concrete, in which the commonly used steel reinforcement is replaced by corrosion-resistant, chemically inert carbon fibers, shows a solution at this point. With its 4-fold higher tensile strength and 6-fold lower density than mild steel, carbon fiber proves to be a suitable substitute. With the same component performance, material consumption can be considerably reduced. Concrete coverings for the protection of the steel reinforcement, which were previously inevitably required, can be omitted.