Demolition waste : an analysis of composition and financial value based on a case study in Vienna / von Katrin Lepuschitz
VerfasserLepuschitz, Katrin
Begutachter / BegutachterinFellner, Johann
UmfangVI, 83 Bl. : Ill., graph. Darst.
HochschulschriftWien, Techn. Univ., Master Thesis, 2013
URNurn:nbn:at:at-ubtuw:1-69957 Persistent Identifier (URN)
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Demolition waste [2.01 mb]
Zusammenfassung (Englisch)

The following thesis aims to elaborate on the composition and financial value of building materials after demolition. The theoretical part presents the current situation on the management of construction and demolition waste in Austria and Europe by addressing relevant legal regulations, norms and guidelines. It provides relevant information on the establishment of secondary markets for recycled building material, namely building components exchange. Additionally, strategies and issues as well as economic aspects regarding the reuse of construction and demolition material are identified. Results of the first part show that the political and legal framework comprising an end-of waste status as well as a product-status declaration clearly set the stage for the establishment of a market for recycled construction and demolition material. The second section of the thesis constitutes a case study based on data recorded at in-house investigations of a retirement home building in Vienna. The data collection was carried out by the 'Christian Doppler Laboratory' on 'Anthropogenic Resources' of the Technical University of Vienna. Within the framework of this research project methodologies for the exploitation of secondary resources are elaborated by several PhD students. During the in-house investigations, 14 materials were identified according to major quantity with concrete accounting for the biggest mass. Based on interviews with recycling experts, possible recycling and disposal paths of the selected material streams will subsequently be exhibited in a recycling scenario. In order to determine the value of primary and recycled construction material, prices of raw and recycling materials are investigated with the intention of juxtaposing primary and secondary resource value of the building. The results of the case study reveal that the primary value is 17 times bigger than the secondary resource value. However, this conclusion cannot be generally applied and varies according to building types and demolition processes. Even though disposal costs are taken into account, the secondary value of the house's building materials is still positive, but only when labour, transport and processing costs are excluded from the calculations. Furthermore, steel, concrete, copper, aluminium, glass and scrap metals prove to be the most profitable material streams