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Lime Kiln of Calders

Calders, Moianès, Barcelona

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Lime Kiln of Calders

Curiosity · Calders, Moianès, Barcelona

The Forn de la Calç de Calders, a cultural asset of local interest in the Moianès, is a set of two lime kilns from the mid-nineteenth century, now disused, next to a heavily renovated farmhouse. Each kiln, circular, three metres in diameter and five in height, was built of sandstone and was accessed through an advanced arch that supported a stone vault; it had an opening at ground level to remove the ashes and allow air in, and another, larger one, through which the stone and the bundles of firewood were loaded. The process consisted of extracting the stone with a mallet, loading the kiln with up to one hundred tonnes and feeding it without interruption for three days and three nights; once cooled, the stone was ground to obtain quicklime, which when wetted produced hydraulic lime. It stopped operating in the 1950s.

Photo: Viquipèdia / Wikimedia Commons (CC BY-SA)

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