Chemical and Leaching Behavior of Construction and Demolition Wastes and Recycled Aggregates
Construction and demolition wastes are widely recognized as the main waste stream in the EU, and their recycling and recovery is an important issue in sustainable building industry development. The composition of construction and demolition wastes is highly heterogeneous and is influenced by several...
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| Veröffentlicht in: | Sustainability 2020-12, Vol.12 (24), p.10326 |
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| creator | Diotti, Alessandra Perèz Galvin, Adela Piccinali, Andrea Plizzari, Giovanni Sorlini, Sabrina |
| description | Construction and demolition wastes are widely recognized as the main waste stream in the EU, and their recycling and recovery is an important issue in sustainable building industry development. The composition of construction and demolition wastes is highly heterogeneous and is influenced by several factors, including the raw materials and construction products used. The environmental performance of these materials are therefore considerably variable and, in some cases, do not comply with the regulatory limits established to ensure the protection of the natural environment. In this context, this paper presents a data analysis on the environmental behavior of construction and demolition wastes and recycled aggregates in terms of both chemical composition and the release of contaminants according to a leaching test. Subsequently, the most critical parameters for recovery were identified and statistically evaluated. The leaching results showed that SO4, Cu, and COD are critical compounds for both CDWs and RAs. |
| doi_str_mv | 10.3390/su122410326 |
| format | Article |
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| source | MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals |
| subjects | Aggregates Chemical composition Chemical pollution Concrete Construction Construction industry Construction materials Contaminants Demolition Economic activity Environmental behavior Green buildings Industrial development Influence Landfill Leaching Particle size Raw materials Recovering Recycling Sustainable development Waste disposal Waste management Wastes |
| title | Chemical and Leaching Behavior of Construction and Demolition Wastes and Recycled Aggregates |
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