Fours à chaux
MonumentHidden Treasure
Fours à chaux, located in Chartres-de-Bretagne (Département 35), is a medieval landmark built in the Middle Ages. The monument is currently closed to visitors.
Key facts
- Type
- autre
- Period
- Medieval (11th-15th century)
- Location
- Chartres-de-Bretagne, Département 35, Bretagne
- Visit
- Closed to visitors
- GPS
- 48.0432, -1.7164
- Mérimée Reference
- PA00090524
Majestic witnesses to 19th-century Breton industry, the seven lime kilns at Lormandière stand in stone and brick on an exceptional limestone site, a blend of industrial archaeology and wilderness.
History
At the heart of the Rennes basin, in Chartres-de-Bretagne, the Lormandière and Chaussairie lime kilns are one of the best-preserved industrial complexes in Brittany. These seven imposing masonry structures, built in two separate campaigns in the second half of the 19th century, speak eloquently of the boom in the extractive and chemical industries that profoundly transformed the rural landscape of Ille-et-Vilaine. What sets this site apart from many other industrial remains is the remarkable coherence of its ensemble: the massive, stocky furnaces themselves coexist with numerous outbuildings - workshops, sheds, storage rooms - and a brick chimney, carefully restored in 1997, which still rises proudly into the sky. Together, they form a striking picture in which local limestone meets industrial red brick. The visit offers an authentic insight into the world of the 19th-century furnace workers. It's easy to imagine the intense heat generated by the kilns in operation, the ballet of wagons transporting the limestone from the nearby quarry, and the din of the electric winches. Now silent, the kilns retain an almost mineral presence that is both imposing and moving. The natural setting makes the experience that much richer: the disused quarry, now flooded, forms a quarry lake with clear, deep-green waters, a veritable ecological gem. All around, the limestone flora - rare in Brittany - has reclaimed the slag heaps and wasteland, making the site as much a botanical conservatory as a historic monument. The Ille-et-Vilaine General Council, which has owned the site since 1988, has turned it into a protected area combining industrial heritage and biodiversity.
Architecture
The lime kilns at Lormandière and La Chaussairie belong to the type of continuous shaft kilns typical of the large-scale lime industry in the second half of the 19th century. Each kiln is a massive truncated cone or cylindrical structure, built of local limestone rubble and partially reinforced with brick, up to ten metres high. The lower part, pierced by openings for extracting the burnt lime and supplying air, rests on thick foundations designed to absorb the considerable thermal stress generated by the firing process. The site as a whole reflects the organisational logic of an integrated factory of the industrial era: the kilns are surrounded by functional outbuildings - maintenance workshops, storage warehouses, administrative premises - forming a veritable industrial village. The wagon tracks, some of which are still visible, bear witness to the logistical sophistication of the site, which by the end of the 19th century was using electric traction to transport limestone from the quarry. The brick chimney, restored in 1997, is the most spectacular feature of the site: slender and perfectly aligned, it alone embodies the industrial aesthetic of the Victorian era transposed to Brittany. The location of the complex, on the edge of the now flooded quarry, was dictated by an implacable economic logic: to minimise the transport distances between extraction and firing. This choice of location, dictated by the local geology, is also at the root of the site's current ecological wealth, with the outcropping limestone having encouraged the development of a thermophilic, calcicolous flora that is particularly rare in Brittany.
Related Figures
C. Coudé — entrepreneur local, constructeur des trois premiers fours entre 1865 et 1867E. Doret — fondateur de la société éponyme ayant édifié les quatre fours agricoles entre 1876 et 1878Conseil général d'Ille-et-Vilaine — acquéreur et gestionnaire du site depuis 1988, acteur de sa préservation patrimoniale et écologiqueSociété Anonyme Industrielle et Commerciale des fours à chaux de Lormandière et de la Chaussairie Réunis — entité exploitante en 1891, principal producteur de chaux de Bretagne à son apogée
Tags
Nearby castles
Frequently Asked Questions
Where is Fours à chaux located?
Fours à chaux is located in Chartres-de-Bretagne, Département 35 department, Bretagne region, France.
When was Fours à chaux built?
Fours à chaux dates back to a period built in the Middle Ages (11th-15th century).
Is Fours à chaux open to visitors?
Fours à chaux is currently closed to visitors.
