Mixed Materials
Durable structural concrete produced with coarse and fine recycled aggregates using different cement types
| Title: | Durable structural concrete produced with coarse and fine recycled aggregates using different cement types |
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| Authors: | Universitat Politècnica de Catalunya. Doctorat en Enginyeria de la Construcció, Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental, Universitat Politècnica de Catalunya. ATEM - Anàlisi i Tecnologia d'Estructures i Materials, Vintimilla Molina, Carla Teresa, Etxeberria Larrañaga, Miren, Li, Zongyang |
| Publisher Information: | Multidisciplinary Digital Publishing Institute (MDPI) 2023-10 |
| Document Type: | Mixed materials |
| Abstract: | The durability properties of structural recycled aggregate concrete (RAC) produced with 50% coarse recycled concrete aggregates and up to 20% fine recycled concrete aggregates were analysed and compared to those of conventional concrete (NAC). Both the RAC and NAC mixtures achieved the same compressive strength when using an effective water–cement ratio of 0.47 and 0.51, respectively. All the concretes were produced using three types of cement: CEM II A/L 42.5 R, CEM II A/S 42.5 N/SRC and CEM III/B 42.5 N-LH/SR. The properties of drying shrinkage, chloride permeability, and accelerated carbonation coefficient of the concretes were determined experimentally, and the obtained results were compared with the values estimated by specific standards of exposure to XC1–XC4 (corrosion induced by carbonation can happen due to the presence of humidity) and XS1 (corrosion caused by chlorides from seawater) environments. The results showed that all the concretes achieved maximum drying shrinkage for use in structural concrete. Any concretes produced with CEM IIIB, including the RAC-C50-F20 concrete, achieved very low chloride ion penetrability, ranging between 500 to 740 Coulombs. In addition, all concretes manufactured with CEM IIAL and CEM IIAS, including RAC-C50-F20, were suitable for use in XC3 and XC4 exposure environments, both with 50- and 100-year lifespans. Peer Reviewed Objectius de Desenvolupament Sostenible::12 - Producció i Consum Responsables Objectius de Desenvolupament Sostenible::12 - Producció i Consum Responsables::12.5 - Per a 2030, disminuir de manera substancial la generació de residus mitjançant polítiques de prevenció, reducció, reciclatge i reutilització Objectius de Desenvolupament Sostenible::13 - Acció per al Clima Objectius de Desenvolupament Sostenible::11 - Ciutats i Comunitats Sostenibles Postprint (published version) |
| Index Terms: | Àrees temàtiques de la UPC::Edificació::Materials de construcció::Formigó, Concrete -- Additives, Concrete -- Recycling, Coarse and fine recycled aggregates, Supplementary cementitious materials, CEM IIAL, CEM IIAS, CEM IIIB, Concrete durability, Compressive strength, Drying shrinkage, Carbonation, Chloride penetration, Formigó -- Additius, Formigó -- Reciclatge, Article |
| URL: | |
| Availability: | Open access content. Open access content http://creativecommons.org/licenses/by/4.0 Open Access Attribution 4.0 International |
| Note: | application/pdf English |
| Other Numbers: | HGF oai:upcommons.upc.edu:2117/400824 Vintimilla, C.; Etxeberria, M.; Li, Z. Durable structural concrete produced with coarse and fine recycled aggregates using different cement types. "Sustainability (Switzerland)", Octubre 2023, vol. 15, núm. 19, article 14272. 2071-1050 10.3390/su151914272 1427144996 |
| Contributing Source: | UNIV POLITECNICA DE CATALUNYA From OAIster®, provided by the OCLC Cooperative. |
| Accession Number: | edsoai.on1427144996 |
| Database: | OAIster |
| Description not available. |