Secondary Aggregate: Difference between revisions
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==Market Size and Context== | ==Market Size and Context== | ||
Generally in the waste sector [[Secondary Aggregate]] can be used to describe both | Generally in the waste sector [[Secondary Aggregate]] can be used to describe both '''Recycled Aggregate''' and [[Secondary Aggregate]] of any sand and stone material that has been used previously (further details on the waste that falls into this broad category is listed on the WikiWaste page [[Soil, Rubble, Hardcore]]), and recycled or recovered to a '''Secondary Aggregate Specification'''. In this context Secondary Aggregate can also be produced from the [[Soil, Rubble, Hardcore]] from Local Authorities - primarily from waste deposited by the public at [[Household Waste Recycling Centres]] ([[HWRC]]). | ||
The overall split of Aggregates (for 2017) is summarise below from the same MPA document: | The overall split of Aggregates (for 2017) is summarise below from the same MPA document: | ||
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==Primary Product Uses/Specification== | ==Primary Product Uses/Specification== | ||
The same Quality Protocol sets out in Appendix B the standards and specifications which must be met for Recycled/Secondary Aggregate Specifications. In summary they include: | The same Quality Protocol sets out in Appendix B the standards and specifications which must be met for Recycled/Secondary Aggregate Specifications. In summary they include: | ||
*Unbound | *Unbound recycled aggregate: for use as Pipe bedding, Drainage | ||
*Unbound | *Unbound recycled aggregate: for use as Granular fill, General fill, Capping | ||
*Unbound | *Unbound recycled aggregate: for use as sub base | ||
* | *recycled aggregate for concrete | ||
* | *recycled aggregate for asphalt | ||
* | *recycled aggregate for hydraulically bound mixtures | ||
*Reclaimed asphalt for use in bitumous mixtures (often termed planings) | *Reclaimed asphalt for use in bitumous mixtures (often termed planings) | ||