Pumice (market for pumice)

Emissions generated by the activity within the product supply chain as described in ecoinvent v3.10. The product "pumice" represents 1 kg of pumice stone. Crushed and classified pumice is employed as an additive in light insulating concrete used to make constructional units. Due to its limited compression strength this building material can only be used for two-storey buildings or for cladding load-bearing frameworks. Building blocks consist of pure natural pumice granules treated to remove organic and inorganic im-purities. They are mainly used to build houses. Powdered pumice is used as an abrasive as a polishing medium and as an additive to pumice soap. It is also used as an absorption medium due to its large surface area (e.g. in packages carrying breakable liquid containers). The cut-off classification is allocatable product. The activity type is market activity. The reference product amount is 1.