The equipment part of the project corresponded to the creation of a garden gymnasium within a set of 254 housing units under rehabilitation, a crèche with 68 cradles and a 600 m² garden. The gymnasium is equipped with a 60-seat grandstand and a 300 m² multi-sport hall. The refined architecture of the gymnasium enhances the garden placed on a glass strip of the building. Only concrete claustras streak an entirely white volume, letting natural light pass through to illuminate a play area, winter gardens and a dance room. A planted patio connects the different elements of the program. This project was distinguished during the 4th edition of the Trophée Béton Pro, rewarding architectural projects using concrete in an innovative, sustainable and aesthetic way. The issue? Immaculate concrete. In fact, the architect required ultra-white concrete. The Parisian Cemex production units at Port Victor and Tolbiac lived up to the expectations imposed by this project, both in terms of the rigor of concrete production and the technicality of the formulas. Cemex supplied 2,500 m3 of concrete for this project, including 1,500 m3 of architectural and self-compacting concrete based on white cement with white and beige coloring. These concretes were respectively intended for the construction of the screens and sails of the nursery, and for the construction of the sails of the sports equipment. Cemex also advised and provided pumping services to facilitate the implementation of concrete. The GTM company carried out meticulous work implementing these concretes in formworks with particularly complex geometry, narrow and difficult to access. All these constraints required a very fluid, stable and consistent quality concrete formula, a challenge met by Cemex's quality and production departments. Well in advance of the construction site, significant specification work had taken place and several samples were given to the architect until the ideal formula was validated. Faced with the architect's high requirements in terms of color, the Cemex teams made all the necessary efforts to obtain the expected color.
Speakers / Project management: RIVP / DJS / DFPE
Architect: Antoine Regnault Architecture
Company: GTM Building
