01.08.2022
Within the framework of the "Cadran solaire" project in La Tronche (38), Demcy has experimented with several solutions for the reuse and recovery of materials
Direction La Tronche, in Isère - Within the framework of the reconversion project of the former regional health and security centre of the armies, renamed "Cadran solaire", Demcy has experimented with different solutions of reuse, selective deconstruction of the materials of the shell and the finishing work, for recovery on site or for other projects.

In figures, this project represents :
Landscaping of the future project
- 20,100 tiles (81 t)
- 223 wooden beams or 162 t
29,163 t of rubble from the deconstruction was crushed on the site, which allowed the creation of a new material, reused locally for projects in La Tronche, Saint-Martin-d'Hères, and Meylan.
Reuse in future construction on site
- 3,175 t of cut stone and natural stone
Sale in the ephemeral shop "Batitec" set up by our partner, the association ECO'MAT38, for four months:
- 363 units of joinery, i.e. 17 t
- 648 pieces of furniture, i.e. 22 t
- 898 light fittings, i.e. 4 tonnes
- 362 sanitary units, i.e. 3.5 t
By promoting short circuits in the Grenoble area, our project contributed to the creation of jobs through the experimentation of a recycling centre, the preamble of a future material library for the agglomeration.
Thanks to the EPFL du Dauphiné, the main sponsor of the reuse operation, as well as the University of Grenoble Alpes, the Crous Grenoble Alpes, the City of La Tronche and Grenoble-Alpes Métropole, for their trust and congratulations to the teams involved in this project!
Project manager: KERN INGENIERIE
Circular Economy Project Management: NA ARCHITECTURE
Partner: ECO'MAT38
-
04.09.2023On the TELT project, the Eiffage Foundations teams...In the heart of the Savoie region, our Eiffage Fondations teams are building two final support structures for the Modane bypass (73) as part of the work on the Lyon-Turin...
-
31.08.2023In Colombia, Eiffage Génie Civil Marine drives the...In Colombia, on the Puerto Antioquia project, our teams from Cotema - a consortium comprising Eiffage Génie Civil Marine (lead contractor) and Termotecnica - installed...
-
10.08.2023At the Toulouse site of the future metro, Eiffage Génie...On the site of lots 1 and 2 of the future Line C of the metro, preparatory work is coming to an end and work has begun on the moulded walls at the future La Vache...