While it's true that glass recycling is an established process, making glass, even using recycled materials, is energy intensive. Most glass making involves burning natural gas to heat the raw ...
The group is looking into whether more of the interlocking feature could be made from printed glass too. MIT engineers demonstrate how they make strong, reconfigurable bricks out of recycled glass.
Non-experts may call it broken or crushed glass, but in the trade this is known as cullet. The cullet is then melted in a furnace before it is placed into moulds that are used to make new glass ...
Recycled glass can be used to remake the same products as well as new products like insulation. Every tonne of glass re-melted saves 246kg of carbon dioxide compared to making a tonne of new glass.