Outside Paris, Holcim, a Swiss-based provider of innovative and sustainable building solutions, and Seqens, a social housing provider in France, are partnering to build Recygénie—a 220-unit housing complex, including 70 social housing units. Holcim is calling the project the world’s first fully recycled concrete building.
To build Recygénie, Holcim will use a concrete it has developed in which all components—cement, aggregates, and water—are made of recycled materials. The organization says its recycled cement has saved about 3,000 tons of natural resources that would have been extracted from quarries. Holcim’s concrete—made with recycled aggregates from construction and demolition waste, recycled wastewater, and rainwater—has saved more than 6,000 tons of natural resources.
“We need to shift gears: from a linear take-make-waste economy to a circular one, to improve living standards for all, while staying within our planet’s limits,” Edelio Bermejo, Holcim’s head of global R&D, said in a statement.
The Recygénie project is part of a renewal program launched by the City of Gennevilliers, located in the northwest suburbs of Paris. The project will offer new and diversified housing—including both social and private housing—as part of a redevelopment of the entire district.
After creating cement with 20% recycled construction and demolition waste in Switzerland, Holcim has been working to scale the solution across Europe. Holcim says it aims to use fully recycled concrete across all its markets, adapting the solution to local building norms and material availability. In 2022, Holcim recycled 34 million tons of materials, 7 million tons of which were construction and demolition waste—turning these materials into new building solutions and alternative fuels.
Construction of Recygénie is underway, with completion expected by the end of 2024.
On the Building Team:
Architect: A26 BLM
Owner and developer: Seqens
Engineer: Ingea
Control bureau: Qualiconsult
General contractor: Legendre
Related Stories
| Apr 4, 2012
Educational facilities see long-term benefits of fiber cement cladding
Illumination panels made for a trouble-free, quick installation at a cost-effective price.
| Apr 3, 2012
Luxury hotel 'groundscraper' planned in abandoned quarry
Would you spend $300 a night to sleep underground? You might, once you see the designs for China's latest hotel project.
| Apr 3, 2012
Educational facilities see long-term benefits of fiber cement cladding
Illumination Series panels made for a trouble-free, quick installation at a cost-effective price. The design for Red Hawk Elementary School stems from the desire to create a vibrant place for kids to learn. In an effort to achieve this design, RB+B Architects selected Nichiha USA to provide a durable yet modern, contemporary exterior finish.
| Mar 29, 2012
U.K.’s Manchester Airport tower constructed in nine days
Time-lapse video shows construction workers on the jobsite for 222 continuous hours.
| Mar 27, 2012
Precast concrete used for affordable, sustainable housing in New York
Largest affordable housing development in the nation will provide housing for close to 500,000 people.
| Mar 16, 2012
Stego embarks on HPD Pilot Program
Vapor barrier manufacturer strives to provide better green choices to designers and builders.
| Mar 14, 2012
Hearing to decide fate of unfinished Harmon in Las Vegas under way
The testimony began with CityCenter consulting engineer Chukwuma Ekwueme methodically showing photo after photo of parts of the Harmon, where he and his team had chipped away the concrete pillars and beams to examine the steel reinforcing bars inside.
| Feb 22, 2012
ACI BIM manual for cast-in-place concrete in development
The improved communication, coordination, and collaboration afforded by BIM implementation have already been shown to save time and money in projects.
| Feb 17, 2012
Tremco Inc. headquarters achieves LEED Gold certification
Changes were so extensive that the certification is for new construction and not for renovation; officially, the building is LEED-NC.
