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Circular Economy
Figure 1. Recycling process of CDW
Figure 2. Images of the Experimental Bike Lane
3. Results and conclusions
The bearing capacity and its evolution during a period of two years was more than acceptable. It exceeded the limits established by regulations for the construction of bike lanes. Moreover, its bearing capacity increased after two years to ensure the use of these two recycled materials as granular layers in bike lanes. Over the two-year study subbase layers made with screenings wastes obtained a mean modulus of 200 MPa, granular bases made with recycled aggregates obtained a mean modulus of 420 MPa, these moduli value increase for the mixed recycled materials can be explained by certain latent hydraulicity of the cement particles or by various pozzolanic activities of the ceramic particles.
4. Acknowledgment
The author would like to thank the FEDER for financial support via projects (in Spanish): CICLOVÍAS.
5. References
Jiménez, J.R., Recycled aggregates (RAs) for roads, in: Handb. Recycl. Concr. Demolition Waste, 2013: pp. 351– 377. doi:10.1533/9780857096906.3.351.
Ministry of Development, General technical specifications for road works and bridges (PG-3), Ministerio de Fomento, Centro de Publicaciones, 2015. Available in: https://www.fomento.gob.es/recursos_mfom/pg3_parte_5.pdf
Vieira, C.S., P.M. Pereira, Use of recycled construction and demolition materials in geotechnical applications: A review, Resour. Conserv. Recycl. 103 (2015) 192–204.
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