Prospecting and Exploring Anthropogenic Resource Deposits: The Case Study of Vienna's Subway Network

摘要: Summary Urban mining is seen as a key strategy for the recovery of secondary raw materials from built environment. Although large material stocks have been reported in infrastructure networks, their actual recoverability over time has received little attention so far. This article presents case study on prospection and exploration anthropogenic resources deposited Vienna's subway network. After quantifying built-in network, resource classification was performed, distinguishing between (1) that to be replaced are thus potentially extractable after considerable span (<100 years) (2) remaining not extractable. Results given tonnes (t) show network consists mainly concrete (12,000,000 t), iron & steel (600,000 gravel (300,000 bricks (250,000 copper (10,000 aluminum (6,000 t). A first evaluation demonstrated 3% (mainly copper, aluminum, gravel) renewed and, consequently, can resources. Ninety-seven percent were classified concrete, steel, bricks), because they found permanent structures lines declared cultural heritage monuments. For materials, further investigation particularly considers end life practice existence hibernating stock required.