Kiln - lime, Ballybeg, Co. Cork
Co. Cork |
Kilns
At Ballybeg in north Cork, a lime kiln sits tucked into a slight depression against a natural rock outcrop, its south-east-facing front wall rising to five and a half metres.
Lime kilns were once a fixture of the Irish agricultural landscape, used to burn limestone at high temperatures to produce quicklime, which farmers spread on acidic soils to improve fertility. Most have crumbled into anonymity, swallowed by hedgerows or collapsed under their own weight. This one survives in considerable detail, and that detail is worth attending to.
The structure is built from random-rubble limestone walls encasing a core roughly eight metres along its north-west to south-east axis and six metres across. The front elevation carries an arched recess, about one and a half metres high and just over two metres wide, with corbelled stonework, a technique where stones are laid so that each course projects slightly beyond the one below, forming a self-supporting curve or overhang. Those corbelled stones have partially collapsed at the rear of the recess. Beneath them, sloping slabs lead to what was the stoking hole, now blocked, where fuel was fed into the base of the fire. A narrow rectangular opening at the base of the front wall, roughly sixty centimetres wide, would have allowed air in and ash or clinker out. Iron brackets remain fixed in the front wall above the recess. At the top, a low wall closes off the kiln's upper section, with a wider opening giving access to the funnel area, though the funnel itself is now infilled. Scattered beside the front of the structure is a remnant spread of coal and culm, the compressed coal dust and clay mixture commonly used as fuel in this part of Ireland, a detail that quietly confirms the kiln's working life rather than just its existence.