Oil shale ash
Natural and versatile material
Combustion of oil shale produces ash with a diverse mineral composition, which can be used to increase the yield of fields, to produce building materials and for many other purposes.
Possibilities of using oil shale ash can also be found outside Estonia
Burnt oil shale is a chemical in the meaning of REACH regulation and is registered in the European Chemicals Agency's database allowing the transport of ash within the European Union (REACH registration number: 01-2119703178-42-0002).
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Uses of oil shale ash
Oil shale ash is used as a main constituent in cement production, in production of aerated autoclaved concrete blocks and as an additive to concrete production (also in underfill mixtures) and in dry building mixtures. The quality of oil shale is determined by the Estonian standard EVS 927: 2018. See also a certificate of conformity for construction burned oil shale.
Oil shale ash is suitable for mass stabilization of soft soils and for laying foundations for highways, railways and pipelines
For port expansion and mass stabilization of contaminated soil
For neutralization of acidic soils and for the improvement of arable and grassland soils. Oil shale ash helps to increase the yield of fields.
For example, as a binder for CO2 and sulfur from energy production
Soil improver Enefix
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