Overcoming the limitations of recycled concrete aggregates in Belgium
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Bibliografische Angaben
Autor(en): |
Talina Zeidan
(BESIX S.A., Brussels, Belgium)
Xavier Farina (BESIX S.A., Brussels, Belgium) |
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Medium: | Tagungsbeitrag | ||||
Sprache(n): | Englisch | ||||
Tagung: | IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021 | ||||
Veröffentlicht in: | IABSE Congress Ghent 2021 | ||||
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Seite(n): | 191-196 | ||||
Anzahl der Seiten (im PDF): | 6 | ||||
DOI: | 10.2749/ghent.2021.0191 | ||||
Abstrakt: |
In Belgium, the presence of numerous quarries in the Walloon region makes recycled concrete aggregates (RCA) less attractive for structural concrete applications: since the natural aggregates are at reach, it is unprofitable from both a financial and an environmental aspect to use RCA. In addition, the supply of recycled aggregates on the Belgian market is lacking. Only a few recyclers produce type A+ RCA, which could be used in ready-mix concrete, but tend to keep them for their own productions. Furthermore, although the revised Belgian national concrete standard (NBN B 15- 001) allows cast-in-situ concrete to contain higher fractions of recycled aggregates, there is presently no concrete supplier yet certified to produce concrete with recycled aggregates. One should finally note the lack of stimulation or even mandatory incentives by the Authorities to promote the use of RCA. The aim of this paper is to identify the various reasons behind RCA limitations in Belgium and to suggest solutions to overcome them. |
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Stichwörter: |
grüner Beton
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Copyright: | © 2021 International Association for Bridge and Structural Engineering (IABSE) | ||||
Lizenz: | Die Urheberrechte (Copyright) für dieses Werk sind rechtlich geschützt. Es darf nicht ohne die Zustimmung des Autors/der Autorin oder Rechteinhabers/-in weiter benutzt werden. |