MaterialsWeek 2021
Poster
Laser-based building material sorting for the processing of construction and demolition waste for the circular economy
GW

Gerd Wilsch

Bundesanstalt für Materialforschung und -prüfung (BAM)

Wilsch, G. (V)¹; Klewe, T.¹; Kruschwitz, S.¹; Völker, T.¹
¹Bundesanstalt für Materialforschung und –prüfung (BAM)

A joint project of partners from industry and research institutions for the research and construction of an analysis system for an automated, sensor-supported sorting of construction and demolition waste will be presented. This is intended to supplement or replace the previously practiced manual sorting, which harbors many risks and dangers for the staff and only enables obvious, visually detectable differences for separation. The method of laser-induced breakdown spectroscopy is to be used in combination with hyperspectral sensors. Due to the jointly processed information (data fusion), this should lead to a significant improvement in the separation of types. In addition to the sorting of different materials (concrete, main masonry building materials, organic components, glass, etc.), impurities such as SO3-containing building materials (gypsum, aerated concrete, etc.) could also be detected and separated. 

Abstract

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Poster

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