The Application of Waste Float Glass, Recycled in Structural Beams made with the Glass Casting Method

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It is not obvious to talk about glass recycling when we realize that a mature recycling procedure for glass bottles is already working well. However, apart from glass bottles, unfortunately, that a large amount of glass will disappear into landfills. This large quantity of unrecycled glass indicates that there is a large potential in upgrading the glass recycling process. In the field of architecture, we see a fast-growing interest in using glass, also for structures. The glass bricks of Crystal Houses in Amsterdam are a good illustration. Aiming at maximizing the recyclability of glass, this paper focuses on the structural use of the glass components made from recycled glass through kiln casting method. An overview of the existing glass recycling industry is given at the beginning, followed by a discussion of glass type to be recycled. After this the experimental process of the glass recycling is introduced, which uses coated float glass with tints as the basic material to be recycled. Following this, a further exploration in three structural properties of the recycled products is conducted, namely: Young’s modulus, coefficient of thermal expansion and the fracture strength, with mechanical experiments. Finally, the test results are analyzed together with the chemical composition of the recycled products, which is derived from X-ray fluorescence (XRF) analysis. The result contains the value of mechanical properties and it evaluates the possibility of the structural use as a recycled-float-glass beam. In the end of this paper, the future possibility and feasibility in structural application of recycling waste float glass are discussed.
Original languageEnglish
Title of host publicationChallenging Glass Conference
Subtitle of host publicationConference on Architectural and Structural Applications of Glass, CGC 7
EditorsChristian Louter, Freek Bos, Jan Belis
PublisherTU Delft OPEN
Number of pages17
ISBN (Print)978-94-6366-296-3
Publication statusPublished - 2020
EventCGC 7: Challenging Glass Conference (Webinar): 7th International Conference on the Architectural and Structural Application of Glass - Ghent, Belgium
Duration: 4 Sept 20204 Sept 2020


ConferenceCGC 7: Challenging Glass Conference (Webinar)


  • Glass recycling
  • Cast glass components
  • Structural glass


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