On 24/08/2013 20:47, alan wrote:
On 24/08/2013 16:53, Steve Firth wrote:
Huge wrote:

It all goes for cullet, mostly to make glassfibre insulation.

Not quite true. The A1M from Wakefield to the A19 was rebuilt using
lots of
"recycled" glass. It makes excellent ballast. Significant quantities of
cullet are used as construction materials where it can replace sharp
sand.


None of which requires the glass to be separated by colour.

Colour is important when making new glass. The raw materials for glass
melt better if a quantity of recycled glass is mixed with them.

Colin Bignell