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Owner of data set Leca International |
Technical purpose The EPD describes results for production of lightweight expanded clay aggregate, labelled Leca® letklinker, Leca® 10-20, from the factory in Hinge, Denmark.
Lightweight expanded clay aggregate is a granular ceramic material made from natural clay (see process description below). The main characteristic of expanded clay is low density combined with high strength.
Leca® letklinker is used in lightweight blocks and slabs, insulation fill, water treatment, lightweight fillings and geotechnical fills for thermal and sound insulation purposes. Thus Leca® letklinker is typically hidden in buildings or cast into concrete.
The density of Leca® 10-20 is 0.245 tonnes per m³. The thermal conductivity is 0.095 W/mK.
Further information or explanatory material may be obtained by contacting Leca Danmark A/S.
The water content of the Leca® letklinker is 0% when the Leca® letklinker is produced at Leca Danmark A/S in Hinge. The storage conditions can change the water content of the Leca® letklinker up to 25%.
Different waste are recovered in the production process both as fuels as clay additives. See additional Tech info.
Leca® 10-20 is produced by using nearby clay and transported by using a conveyer belt to the factory.
Negligible amounts of packaging material is used for raw materials and auxiliaries received at Leca Danmark A/S so the potential environmental impacts from packaging is not included. Furthermore the final product Leca® letklinker is sold in bulk, so no packaging is used. |
