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Assessment of the permeability to aggressive agents of concrete with recycled cement and mixed recycled aggregate
dc.contributor.author | Cantero, B. | |
dc.contributor.author | Bravo, Miguel | |
dc.contributor.author | de Brito, J | |
dc.contributor.author | Sáez del Bosque, Isabel F. | |
dc.contributor.author | Medina Martínez, César | |
dc.date.accessioned | 2024-07-11T17:10:27Z | |
dc.date.available | 2024-07-11T17:10:27Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Cantero, B., Bravo, M., de Brito, J., Sáez Del Bosque, I. F., Medina, C. (2021). Assessment of the permeability to aggressive agents of concrete with recycled cement and mixed recycled aggregate. Applied Sciences (Switzerland), 11(9). https://doi.org/10.3390/APP11093856 | es_ES |
dc.identifier.uri | http://hdl.handle.net/2183/37951 | |
dc.description.abstract | [Abstract:] Acceptance by the construction industry of recycled concrete as a sustainable alternative material is contingent upon a reliable assessment of its permeability to corrosive agents. This study analyses the transport mechanisms associated with chloride (Cl−), oxygen (O2) and carbon dioxide (CO2) ions in concrete with cement made with 10% or 25% ground recycled concrete (GRC) separately or in combination with 50% mixed recycled aggregate (MRA). The findings show that, irrespective of aggregate type, concrete with GRC exhibited lower resistance to ingress than conventional concrete due to its greater porosity. Nonetheless, O2 permeability was consistently below 4.5 × 10−17 m2 and CO2 penetration, under 4 mm/year0.5, indicative of concrete with high quality. Resistance to CO2 and Cl− penetration in the materials with 10% GRC was similar to the values observed in conventional concrete. On the other hand, the incorporation of 25% GRC increased the penetration of CO2 and Cl- by 106% and 38%, respectively. Further to those findings in normal carbonation environments, reinforcement passivity would be guaranteed in such recycled materials over a 100 year service life. | es_ES |
dc.description.sponsorship | This study benefitted from the Spanish Ministry of Science, Innovation and Universities mobility grant ETS18/00313, awarded in connection with pre-doctoral university professor scholarship 16/02693, under which Blas Cantero conducted research at the Lisbon University Instituto Superior Técnico construction laboratory. European Regional Development Fund (ERDF) funding was also received for an Interreg-POCTEP research grant (0008_ECO2CIR_4_E, ‘Project for cross-border cooperation to introduce the eco- and circular economy by reducing waste generation and enhancing waste recycling, management and valorisation in Central Spain, Extremadura and Alentejo) and, in conjunction with the Government of Extremadura, under grant GR 18122, awarded to the MATERIA research group. The support of the Foundation for Science and Technology, Civil Engineering Research and Innovation for Sustainability (CERIS) research centre and Instituto Superior Técnico is also acknowledged. | es_ES |
dc.description.sponsorship | Interreg-POCTEP; 0008_ECO2CIR_4_E | es_ES |
dc.description.sponsorship | Junta de Extremadura; GR 18122 | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICIU//ETS18%2F00313 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MECD//FPU16%2F02693 | es_ES |
dc.relation.uri | https://doi.org/10.3390/APP11093856 | es_ES |
dc.rights | Atribución 3.0 España | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | Recycled aggregate | es_ES |
dc.subject | Recycled concrete | es_ES |
dc.subject | Durability | es_ES |
dc.subject | Chloride penetration | es_ES |
dc.subject | Carbonation | es_ES |
dc.title | Assessment of the permeability to aggressive agents of concrete with recycled cement and mixed recycled aggregate | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.access | info:eu-repo/semantics/openAccess | es_ES |
UDC.journalTitle | Applied Sciences | es_ES |
UDC.volume | 11 | es_ES |
UDC.issue | 9 | es_ES |
UDC.startPage | 3856 | es_ES |
dc.identifier.doi | 10.3390/APP11093856 |