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Автор: Mingming Hu
Год: 2011
Издание:
LAP Lambert Academic Publishing
Страниц: 156
ISBN: 9783846550793
Residential building, and built infrastructure in general, determine primary demand of major materials and at the end-of-life they determine also the secondary materials supply. As the life time of buildings is long, the dynamics in their demand and replacement are key factors in long term demand and supply of the materials concerned. A study of the dynamics in residential building in China shows unexpected results. The boom in steel demand and the shortage in scrap for steel production of the last decade will not last long. Under reasonable assumptions regarding economic growth and life time of buildings, there will be a sharp decrease in steel demand for new construction in the next decades and a steady increase in scrap from demolition. The share of Chinese residential building in global steel demand has been substantial, up to 7% in 2008. This part in global demand will go down substantially, within a decade. For other construction, similar dynamics will hold, also inducing...
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