| Title |
Comparative LCA of concrete with recycled aggregates: a circular economy mindset in Europe |
| ID_Doc |
28298 |
| Authors |
Colangelo, F; Navarro, TG; Farina, I; Petrillo, A |
| Title |
Comparative LCA of concrete with recycled aggregates: a circular economy mindset in Europe |
| Year |
2020 |
| Published |
International Journal Of Life Cycle Assessment, 25.0, 9 |
| DOI |
10.1007/s11367-020-01798-6 |
| Abstract |
Purpose Construction and demolition waste (C&DW) is the largest waste stream in the European Union (EU) and all over the world. Proper management of C&DW and recycled materials-including the correct handling of hazardous waste-can have major benefits in terms of sustainability and the quality of life. The Waste Framework Directive2008/98/EC aims to have 70% of C&DW recycled by 2020. However, except for a few EU countries, only about 50% of C&DW is currently being recycled. In the present research, the environmental impact of concrete with recycled aggregates and with geopolymer mixtures is analysed. The aim of the present research is to propose a comparative LCA of concrete with recycled aggregates in the context of European politics. Methods Life cycle assessment (LCA) methodology is applied using Simapro (c) software. A cradle to grave analysis is carried out. The results are analysed based on the database Ecoinvent 3.3 and Impact 2002+. Results Results show that the concrete with 25% recycled aggregates is the best solution from an environmental point of view. Furthermore, geopolymer mixtures could be a valid alternative to reduce the phenomenon of "global warming"; however, the production of sodium silicate and sodium hydroxide has a great environmental impact. Conclusions A possible future implementation of the present study is certainly to carry out an overall assessment and to determine the most cost-effective option among the different competing alternatives through the life cycle cost analysis. |
| Author Keywords |
C&DW; LCA; Recycled aggregate; Circular economy; Geopolymer concrete mixtures |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000556641000001 |
| WoS Category |
Engineering, Environmental; Environmental Sciences |
| Research Area |
Engineering; Environmental Sciences & Ecology |
| PDF |
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