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Origin and history

The Gariel de Vassy cement factory, created in 1832 by the Gariel brothers, is an industrial complex located in Étaule, including a factory with ovens, grinders, a master house and secondary houses. This site marked the French industrial history thanks to the discovery in 1828 of a hydraulic lime, the Roman cement of Vassy, by Honoré Gariel. This revolutionary material, with its properties of rapid grip and exceptional resistance, was widely used in the major works of the Second Empire, such as sewers, the metro, and the Haussmannian renovations of Paris.

Honoré Gariel, a notary passionate about geology, discovered the virtues of a bluish calcareous rock in a well dug near Etaule. After turning it into a mortar, he noticed its ultra-fast grip and hardness, much higher than the oily lime then used. In 1832 he joined forces with his brother Hippolyte and engineer François Garnier to exploit the career. The success was immediate: in 1840, fifteen mills were operating day and night, and in 1855, the first steam engine on the Yonne (120 horsepower) was installed there. Vassy's cement was exported to Paris via riverways and then by rail after 1871.

The site employed up to 600 people and contributed to major projects such as the Suez Canal, the ports of Marseille or Algiers, and the Parisian water supply. Despite his success, his isolation and logistical difficulties led to his abandonment in 1885. The chimney was cut down in 1905, and the site, converted to a farm, was listed for historical monuments on August 5, 2020. Its legacy persists in Parisian infrastructures and Haussmannian buildings.

Vassy cement symbolizes 19th century industrial innovation, combining geological discovery and commercial exploitation. Its economic impact was major for the region of Vallonia, while its transport via the Yonne and Seine illustrates the commercial networks of the time. Today, all the buildings, located 4-8 rue de la Cimentelle, are protected for its role in French technical and architectural history.

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