Water-permeable paving element comprises mix of sintering and fluidising agents on supportive clay-admixed ceramic or stone grain after firing.

摘要

The element is formed under pressure and fired and consists of a mixture of sintering and fluidising elements (5) and a supportive grain (3) to 30-95% of the mixture and composed of silicate or natural stone. The grain is sized up to 10 mm and the fluidiser either natural or synthetic has granulation below 200 mm. The paving element as such admits of coloration and is fired at 600-1200[deg]C in oxidising or reducing atmosphere.