Glass Circularity is a concept that aims towards achieving Circular economy by closing the life-cycle loop of glass.  Circularity of glass can be achieved via reuse of post-consumer glasses or by recycling to get a unique product that can be used for several  other purposes.  Circularity of glass can help minimize the use of raw materials (sand), generation of landfilled waste and pollution emissions.  For every 10% increase in the amount of recycled glass, or cullet, that is used to make containers,  emissions are reduced by 5% and the amount of energy needed goes down 3%.
Finely ground recycled glass can be substituted for a portion of cement in concrete as fly ash and slag which if substituted, will help reduce the emission of  given off as a by-product during concrete production.  This can reduce the carbon footprint of concrete by 20-40%.
Also, recycled crushed glass (on its own or in blends with natural or recycled aggregates) can be used in a range of road work applications  including subbase, embankments material and drainage media in roads.