Carrières de Cléré

The Carrières de Cléré in the Maine et Loire (49), a high quality deposit

The Carrières de Cléré is a high quality deposit of metamorphic rocks located in the Layon Valley. The plant is specialized in the extraction and transformation of rocks into aggregates. This material is essential for the construction of roads and buildings. Thanks to its ideal location, the plant can supply aggregates in the eastern area of the Maine-et-Loire, Indre-et-Loire, Loir-et-Cher, Vienne and Deux-Sèvres departements.

The huge deposit (67 ha) has been renowned for its high quality features since 1917. It is mainly composed of micro-diorite and quartz shale with excellent hardness and abrasion-resistance properties.

Services and know-how

The plant provides the following services all performed by skilled, fully qualified operators: drilling, mining, machine driving, rocks transformation into aggregates, quality and environment controls, trading and logistics. The Carrières de Cléré have provided a wide range of high quality aggregates and gravels for many years such as quarry sand, gravels and gravel-sand mixtures designed for public works projects. WIL software is able to provide a permanent traceability of the products from quarrying to storing.
They also deliver blended and moisturized gravel-sand mixtures, riprap blocks and raw materials.

They produce 800 000 tons per year. The processing plants are composed of a primary crusher and a secondary unit both located in the excavation bottom and a tertiary grinding and screening unit. Installed in October 2012 in a double-clad building, the tertiary unit is fully soundproof. It is located next to the storing silos for finished products. Trucks are loaded and materials shipped right there.

The quarry produces materials to supply concrete and asphalt markets and construction works requiring primary materials and trench backfill materials. The range includes draining products and the plant produces ripraps. These are blocks coming from HRB blasting and then are calibrated. The HRB-blasted materials are processed into calibrated ripraps ranging from 15 to 90 kilos by a Bonnet rotary screen while fine components are removed.

Useful information

The Carrières de Cléré is located in the south-east of the Maine-et-Loire in Cléré-sur-Layon 10 kms away from Vihiers. You can get there from Vihiers by taking the RD 748 then turning on your left on the RD 54 or from Doué-la-Fontaine by taking the RD960 then turning on your left onto the RD 159 towards Cléré-sur-Layon.

Opening hours: from Monday to Thursday from 7.30 am to 12.00 pm and from 1.30 to 5.30 pm. Fridays from 7.30 am to 12.00 pm and from 1.30 to 5.00 pm.