What are the present uses of recycled aggregates(20mm&14mm) in the UK for production of new readymix and what are constraints.

30 Sep 2009 - 22:07
trbuxton asked the following:

We are a recycler of concrete derived from various sources(1) Crushed from demolition concrete(2) Pitwash-the wash out materials from readymix trucks returning to plant washout pits (usually -20mm all in.)
1 Oct 2009 - 20:49
The best source of information about recycled aggregates is aggregain.org.uk. This website is managed by WRAP and has lots of useful advice. If you type in 'concrete' as a keyword for search, there are a number of papers about concrete used as aggregate in concrete. The standard for concrete (BS 8500) differentiates between recycled concrete aggregate (RCA) and recycled aggregate containing other demoltion wastes (RA).