查看文章

The use of recycled material as an alternative constituent material in products replacing natural aggregate, if done at an industrial scale, exposes the supply chain to several risks. Raw material supply, which traditionally could be met on demand by extracting natural resources, could be replaced by providing recovered resources as a re-purposed raw material. This paper analyses the supply chain associated with the use of coarse recycled concrete aggregate, replacing natural coarse aggregate, to produce a new concrete product referred to as recycled aggregate concrete. If the recycled concrete aggregate is used in the production of concrete, the supply of coarse aggregate for ready-mix concrete production will depend on the supply of crushed recycled concrete aggregate, creating increased variability in supply, as this could not be produced on demand. Using dynamic model-based simulations, this paper …