To enable the reuse of aged glazing in construction, understanding its surface quality and structural integrity is key. Existing studies show that aged glass generally has lower bending strength than new glass, but depending on the application, it still holds considerable reuse potential. However, variations in testing methods make it difficult to compare results and establish consistent design strengths. Research in this field is scattered across various European research institutions and industry actors, and there is no centralised database to collect and assess the test data on aged glass.
This talk therefore presents the creation of an open, interactive database of aged glass strength data collected across Europe to facilitate the circular use of glass. Populating the database with datasets from across Europe is key to understanding the effects of various factors on the strength of aged glass, such as type of glazing, geographic location, age, building type, application and weathering conditions. An open-access platform allows users to share, analyse and compare data and statistical methods, helping to establish more standardised, reliable values for its reuse. In the long term, this database will help establish well-founded design values for aged glass.
This talk discusses the development of the open database, tested on datasets and statistical methods from TU Delft, TU Dresden, University of Hertfordshire and TU Darmstadt, while additional partners are being welcomed on ongoing basis. The results highlight the potential of a centralised open database to provide valuable insights for research, design, and product development in the glass industry, supporting the advancement of glass circularity. By centralising test data, developing consistent statistical analysis tools, and providing an open-access platform, we can help researchers, engineers, and architects to design with confidence and help transform glass waste into a valuable resource.