Sika France supplied 134 tonnes of concrete admixtures for the Olympic Athletes’ Village, Paris; 40% CO2 reduction vs standard
saw_Olympic Athletes’ Village, Paris, France
SIKA AT WORK OLYMPIC ATHLETES’ VILLAGE, PARIS, FRANCE CONCRETE PRODUCTION: Sika® ViscoCrete®
SIKA AT WORK OLYMPIC ATHLETES’ VILLAGE, PARIS, FRANCE 2 PROJECT DESCRIPTION The Olympic Athletes’ Village for Paris 2024 was developed as part of the Grand Paris urban regeneration program and designed from the outset for post-Games conversion into housing, offices, and public facilities within a sustainable eco- district. Located across several municipalities in Seine-Saint- Denis, the project transforms a former industrial area along the Seine into a long-term urban neighborhood. Construction was completed within a 15-month timeframe (October 2021 – December 2022), requiring high efficiency and coordination. Sika France supplied 134 tonnes of concrete admixtures for the production of approximately 70,000 m³ of concrete, supporting a wide range of structural elements and exposure classes. The project demonstrates how opti- mized concrete technology can meet demanding sustainability targets while delivering a durable and high-quality concrete solution. PROJECT REQUIREMENTS AND CHALLENGES The Olympic Village presented multiple technical and envi- ronmental requirements, driven by both the Games’ con- struction timetable and the legacy objectives of long-term sustainability. Low-carbon footprint: A key requirement was to achieve a 40% reduction in CO2 emissions for the concrete mix com- pared with standard concrete production, aligning with Paris 2024’s goal of organizing one of the most environmentally re- sponsible Games ever. This was achieved through both build- ing material selection and concrete production strategy. Extended work cycles during winter: To keep the project on schedule across the full 15-month delivery window – includ- ing winter conditions – concrete mixes needed to maintain workability for extended 16-hour cycles without compromising performance. Diverse mix requirements: The project incorporated 40 dif- ferent concrete types, spanning performance classes from C25/30 XC1 D3 S3 to C60/75 XF1 D3 S4, reflecting a range of structural and exposure conditions. Compatibility with 3 cements: To fine-tune carbon emis- sions while meeting technical and temperature performance requirements, three cement types were deployed: ́ CEM III/A 42.5 N LH (lowest carbon footprint) ́ CEM IV/A 42.5 R (optimal balance of CO2 footprint, perfor- mance, and temperature behaviour) ́ CEM I 52.5 N (high-performance concrete grades). These mix demands required the concrete admixture solutions to have: ́ Flexibility ́ Compatibility with 3 cements ́ Performance at every temperature OLYMPIC ATHLETES’ VILLAGE, PARIS, FRANCE
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