Acciona green building materials help cut 36pc CO2 emission

Publish November 7, 2022
real estate

Leading Spanish infrastructure group Acciona has revealed that owing to its use of cutting-edge construction materials it has been able to help prevent emission of almost 980 tonnes of CO2 into the atmosphere.

Among these initiatives, the use of Vertua concrete stands out. It is a green concrete provided by Cemex, which produces 40% fewer emissions than conventional concrete, while maintaining the same structural properties.

The steel supplied by Celsa Group too has been a big help in achieving its green construction goals, said the infrastructure major in its statement.

The Celsa steel generates 36% less CO2 in its fabrication process than the industry average. Furthermore, 93% of the materials used in its production are recycled.

The combination of both materials will result in one of the first 'low-carbon footprint structures' to be built in Spain. This technique is replicable and scalable.

Acciona said it will reduce by 36% the carbon footprint generated by two construction projects - a public school in Torrevieja (Alicante) and a submarine dock in the naval base of Cartagena (Murcia) - thanks to the use of state-of-the-art, low-emission green concrete and steel, as well as the implementation of other measures such as the use of electric machinery, local raw materials and renewable energy.

With these two projects, Acciona will prevent the emission of almost 980 tonnes of CO2 into the atmosphere.

For the construction of the Amanecer Public School for Nursery and Primary Education, Acciona has designed a comprehensive sustainability project that will turn this educational center into a benchmark for decarbonization and the promotion of the circular economy in the infrastructure sector.

The building is being constructed on a 9,000m2 municipal plot of land, which will have a floor area of 4,500m2 and 3,200m2 of landscaping, sports facilities and porches.

All these measures will reduce emissions from the public school’s construction by 365 tonnes, 38% fewer than with the use of the sector’s traditional materials and techniques.

According to Acciona, green concrete is also being implemented in the construction of a submarine dock in the Cartagena Naval Base.

This project includes the dredging of the current submarine pits and the lengthening of the central pier, in addition to the construction of another dock, perpendicular to the North dock, with enough capacity for the berthing of two S-80s. It will be 105 m long and 18 m wide, it stated.

Thanks to the use of 6,500 cu m of CKLEEN concrete, supplied by Hormicruz, it is estimated to prevent more than 615 tonnes of CO2 emissions, with 34% fewer emissions than traditional concrete.

The increasing use of sustainable construction materials is part of the company's 2025 Sustainability Master Plan, which includes the implementation of a 'zero-carbon' model in its corporate purchasing policy.

Over the years, Acciona has emerged as a leader in the provision of regenerative solutions for a decarbonized economy. Its business offer includes renewable energy, water treatment and management, eco-efficient transportation and mobility systems, resilient infrastructures.

The company has been carbon neutral since 2016. Acciona recorded sales of €8.1 billion in 2021 and has a business presence in more than 60 countries.


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