Applications in external works

Glass can be used to form walls and screens, and can be used as a decorative element: a classic case is bottlebottom paving, which is just the bottoms of bottles set in mortar or concrete. Noise barriers may be made of glass, though this practice is far commoner in France and The Netherlands than in some other countries. There are four forms of glass we should be especially concerned with:

  • toughened glass;
  • wired glass;
  • laminated glass; and
  • glass bricks.

Toughened glass This is also known as "tempered"glass, and is a safety glass which is five to six times stronger than annealed glass. It shatters into small pieces when broken. Safety glass is used in telephone booths and because of its strength it is also used ...

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