Maracanã Stadium: Strengthening an iconic landmark with carbonfibers
24. February 2026 | Blog
Upgrading existing infrastructure while preserving architectural heritage is one of the key challenges in modern construction. The renovation of the Maracanã Stadium demonstrates how CFRP reinforcement solutions can extend the service life of iconic structures while improving safety, durability, and sustainability.
When it was originally built in 1950, the Maracanã Stadium in Rio de Janeiro, Brazil, was the largest stadium in the world. Its architectural design was considered revolutionary, as it was engineered to accommodate up to 200,000 spectators while ensuring optimal visibility from all seating areas. Ahead of the 2014 FIFA World Cup and the 2016 Olympic and Paralympic Games, the iconic sports venue underwent extensive renovations. Between 2010 and 2013, structural upgrades were made to meet new regulations and standards. These upgrades addressed steel corrosion and reinforced concrete deterioration while supporting a larger stadium roof and preserving the stadium’s historical and cultural identity. Lightweight composite materials allowed for efficient upgrading of existing infrastructure without extensive demolition or reconstruction.
The three-year renovation aimed to integrate a new roof structure with minimal visual impact, preserve the original architectural appearance, and enhance safety, durability, and load-bearing capacity. Additionally, the stadium had to meet high safety standards. The sustainable features include photovoltaic power generation and water reuse systems.
Different types of carbon fiber reinforced polymer (CFRP) were applied to meet the structural challenges posed by the increased spectator capacity and the new stadium roof. CFRP is a lightweight, minimally invasive reinforcement method. For flexural reinforcement, mid-span beams were strengthened with CFRP laminates bonded with epoxy resin. These laminates were supported by anchoring systems that used low-modulus carbon fiber sheets. This increased the load-bearing capacity while maintaining structural integrity and minimizing added weight. For shear reinforcement, high-modulus CFRP sheets were used for support sections and suspension reinforcement. These sheets provide enhanced shear resistance and structural stability under the increased loads of the new roof system. The main support columns were reinforced with carbon fiber meshes, enabling them to withstand the additional loads imposed by the new roof structure and improving durability and fatigue resistance. In total, the reinforcement measures included over 15,000 linear meters of CFRP laminates, approximately 2,600 m² of CFRP sheets, and around 17,000 m² of carbon fiber mesh. Using advanced composite materials enabled quicker installation compared to conventional reinforcement methods, reduced intervention into the existing structure, and provided high resistance to corrosion, aging, impact, and mechanical fatigue.
At Teijin Carbon, we are proud that our materials contribute to landmark civil engineering, infrastructure, and architecture projects around the globe. Our advanced carbon fiber solutions provide lightweight reinforcement and long-lasting performance, as well as sustainable strengthening of existing structures. The renovation of the Maracanã Stadium exemplifies how advanced composite solutions can extend the service life of iconic structures and support sustainable renovation strategies.