Cast Glass Components out of Recycled Glass: Potential and Limitations of Upgrading Waste to Load-bearing Structures

  • Telesilla Bristogianni TU Delft, Faculty of Civil Engineering and Geosciences
  • Faidra Oikonomopoulou TU Delft, Faculty of Architecture and the Built Environment
  • Clarissa Justino de Lima TU Delft, Faculty of Civil Engineering and Geosciences
  • Fred Veer TU Delft, Faculty of Architecture and the Built Environment
  • Rob Nijsse TU Delft, Faculty of Civil Engineering and Geosciences / TU Delft, Faculty of Architecture and the Built Environment

Abstract

Although in theory glass can be endlessly remelted without loss in quality, in practice only a small percentage gets recycled, mainly by the packaging industry. Most of the discarded glass fails to pass the high quality standards of the prevailing glass industry -due to coatings, adhesives,  other contaminants or incompatibility of the recipe-  and ends up in the landfill. However, employing  discarded glass in cast components for building applications can be a way to reintroduce this waste to the supply chain. Such components can tolerate a higher percentage of inclusions, without necessarily compromising their mechanical or aesthetical properties. This paper explores the potential but also the limitations of recycling glass in order to obtain load-bearing components. First, an overview is provided regarding which types of glass reach the recycling plants and the which not, arguing on the reasons behind this selection. Afterwards, a series of experiments is presented, exploring the possibilities of recycling everyday glass waste, from beer bottles and Pyrex┬« trays to mobile phone screens. Each type of glass waste is initially cast separately to define its flow capability and risk of crystallization. The above information is linked to the X-ray fluorescence (XRF) analyses of the samples prior to recycling. Then, the possibility to mix different glass recipes without fracturing is evaluated. The results point out the types of glass with potential in structural applications, and the overall feasibility of the concept.

How to Cite
BRISTOGIANNI, Telesilla et al. Cast Glass Components out of Recycled Glass: Potential and Limitations of Upgrading Waste to Load-bearing Structures. Challenging Glass Conference Proceedings, [S.l.], v. 6, p. 151-174, may 2018. ISSN 2589-8019. Available at: <https://journals.open.tudelft.nl/index.php/cgc/article/view/2130>. Date accessed: 10 dec. 2018. doi: https://doi.org/10.7480/cgc.6.2130.
Published
2018-05-06