Spectacular limestone models! Immerse yourself in the heart of the future Jacques Chirac Park in Chelles through our photo gallery. Over 6 hectares, ECT teams have created an ecological environment inspired by the region’s ancient quarries. These reliefs will be home to dry grasslands, which have become rare in the Île-de-France region, providing a haven for specific biodiversity.
April 2025, finalization of the future dry grassland contours

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April 2025, finalization of the future dry grassland contours
Spectacular limestone models! Immerse yourself in the heart of the future Jacques Chirac Park in Chelles through our photo gallery. Over 6 hectares, ECT teams have created an ecological environment
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Backfilling open-cast quarries : a technical challenge met
As part of its partnership with Placo Saint Gobain, ECT recycles excavated earth from the construction industry to backfill the open-cast quarry at Cormeilles-en-Parisis (95). This involves backfilling the quarry
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Nicolas Martins, backfill foreman, a career in the field
Nicolas Martins, backfill team leader, joined ECT in 2013 on a four-week fixed-term contract. Since then, he has progressed from reception agent to backfill team leader, specializing in active backfill
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