Expanded vermiculite (expanded vermiculite production)

Emissions generated by the activity within the product supply chain as described in ecoinvent v3.10. The product "expanded vermiculite" represents vermiculite expanded by the heat from light fuel oil in 5 - 8 s at 1250 - 1500 °C and then cooled immediately to 400 °C. The volume increase is 15 - 30 fold. Density of the expanded vermiculite is 64 - 160 kg/m3. Vermiculite is used in its expanded state to make use of its low density good thermal and noise insulating properties and high absorption capacity for liquids. Application areas include: loose filling for hollow spaces e.g. cavity walls; production of insulating plaster by bonding with gypsum or cement ; cement-bonded material is also used to prevent condensation on ceilings and walls in rooms with moist atmospheres; waterglass-bonded slabs for covering load-bearing constructional units made of steel or concrete and for providing a fireproof covering; as an additive to produce lightweight aggregate concrete in competition with porous and pumice-stone concrete. The cut-off classification is allocatable product. The activity type is ordinary transforming activity. The reference product amount is 1.