Expanded clay in granular form is used as a continuous lightweight levelling, compensating, and insulating screed. It does not require compaction and can be applied in thicknesses of 1 cm and above. When used as part of a screening system, it can be finished by laying specific types of panelling (SmartPly OSB, plasterboard, fibreboard, chipboard, etc.) to take the flooring
BASE LAYER FOR FLOOR FINISH
Due to its low specific weight, expanded clay can be laid to considerable thicknesses, and incorporate electrical and water services whilst keeping the structural loading low the porous nature of the expanded clay granules gives excellent thermal installation and improves acoustic insulation. To lay the floor finish, a lightweight insulating top screed is required, either using one of the mixes in the premix expanded clay product range or a traditional sand/cement mix.
LIGHTWEIGHT INSULATING BACKFILL INCLUDING FOR REFRACTORY PURPOSES
New construction often requires a backfill material that is stable, durable, lightweight, and non-combustible. This often the case for structural purposes in the refurbishment of old buildings, e.g. as a lightweight fill on top of old structural vaults and different types of floors and decks, etc. Expanded clay is extremely well-suited to these applications. It can also be used as backfill in proximity to structural elements that are combustible (such as timber stairs and suspended floors). It is also extensively used as an insulation material in civil and industrial construction as fire protection, for making safe active or redundant cisterns and storage tanks, for laying underground pipelines, and as insulation at high temperatures, including of refractory type.