Abstract
With the aid of a material flow analysis of the residential building sector in Upper Austria the most important materials being utilized for construction and adaptation on the input side, its quantities being bonded in the existing building stock and its relating fractions arising as construction and demolition waste (CDW) on the output side could be calculated, whereby beside different materials also a differentiation between CDW arising from different building divisions (new construction, adaptation & demolition) was taken into account. Moreover the stock was distinguished due to the different composition of materials being used for buildings of a different building era. After a projection for the overall CDW in Upper Austria (entire civil- & building engineering), conclusions about current remaining and future necessary disposal and recycling facilities for CDW could be drawn. Both, today and in the future, mineral fractions will count for the biggest part among all arising CDW. However, because of the long average lifetime of a building, a strong increase of non mineral fractions can be expected only in the long run. Due to a high expected quota of future necessary demolitions, adaptations and refurbishments of buildings having been constructed in the 60s/70s & 80s, the overall amount of arising CDW will increase until 2051 by more than 1/3 compared to the quantity in 2001. Regarding disposal- & recycling facilities it is obvious, that despite enough capacities in the medium run, a sustainable building industry with highly efficient recycling and integrated strategies, reducing waste already initially will be inevitable in the long run.
| Translated title of the contribution | Construction & Demolition Waste in Residential Building in Upper Austria: Masses & Capacities of Disposal-& Recycling Facilities Today & Tomorrow |
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| Original language | German (Austria) |
| Publication status | Published - Nov 2007 |