Water-washed fine and coarse recycled aggregates for real scale concretes production in Barcelona
The use of recycled aggregate to reduce the over-exploitation of raw aggregates is necessary. This study analysed and categorised the properties of water-washed, fine and coarse, recycled aggre-gates following European Normalization (EN) specification. Because of their adequate properties, zero impu...
| Autores: | ; ; ; |
|---|---|
| Tipo de documento: | Capítulo de libro |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/375171 |
| Acceso en línea: | https://hdl.handle.net/2117/375171 https://dx.doi.org/10.3390/su14020708 |
| Nivel de acceso: | Acceso abierto |
| Palabra clave: | Aggregates (Building materials) -- Recycling Recycled concrete aggregate Recycled aggregate concrete Workability Compressive strength Pavement Àrids (Materials de construcció) -- Reciclatge Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures |
| _version_ | 1878739089678663680 |
|---|---|
| author | Etxeberria Larrañaga, Miren|||0000-0003-2208-6207 |
| author2 | Konoiko, Mikhail García, Carles Perez Peñalta, Miguel Ángel |
| author2_role | author author author |
| author_browse | Etxeberria Larrañaga, Miren|||0000-0003-2208-6207 García, Carles Konoiko, Mikhail Perez Peñalta, Miguel Ángel |
| author_facet | Etxeberria Larrañaga, Miren|||0000-0003-2208-6207 Konoiko, Mikhail García, Carles Perez Peñalta, Miguel Ángel |
| author_role | author |
| collection | UPCommons. Portal del coneixement obert de la UPC |
| description | The use of recycled aggregate to reduce the over-exploitation of raw aggregates is necessary. This study analysed and categorised the properties of water-washed, fine and coarse, recycled aggre-gates following European Normalization (EN) specification. Because of their adequate properties, zero impurities and chemical soluble salts, plain recycled concrete was produced using 100% recycled concrete aggregates. Two experimental phases were conducted. Firstly, a laboratory phase, and secondly, an on-site work consisting of a real-scale pavement-base layer. The workability of the produced concretes was validated using two types of admixtures. In addition, the compressive and flexural strength, physical properties, drying shrinkage and depth of penetration of water under pressure validated the concrete design. The authors concluded that the worksite-produced concrete properties were similar to those obtained in the laboratory. Consequently, the laboratory results could be validated for large-scale production. An extended slump value was achieved using 2.5–3% of a multifunctional admixture plus 1–1.2% of superplasticiser in concrete production. In addition, all the produced concretes obtained the required a strength of 20 MPa. Although the pavement-base was produced using 300 kg of cement, the concrete made with 270 kg of cement per m3 and water/cement ratio of 0.53 achieved the best properties with the lowest environmental impact. |
| eu_rights_str_mv | openAccess |
| format | bookPart |
| id | ES_bae19d96fd00a8fbddae633b76ae6b87 |
| institution | Universitat Politècnica de Catalunya (UPC) |
| instname_str | Universitat Politècnica de Catalunya (UPC) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:upcommons.upc.edu:2117/375171 |
| publishDate | 2022 |
| publishDateSort | 2022 |
| publisher | Multidisciplinary Digital Publishing Institute (MDPI) |
| publisherStr | Multidisciplinary Digital Publishing Institute (MDPI) |
| reponame_str | UPCommons. Portal del coneixement obert de la UPC |
| spelling | Water-washed fine and coarse recycled aggregates for real scale concretes production in Barcelona Etxeberria Larrañaga, Miren|||0000-0003-2208-6207 Konoiko, Mikhail García, Carles Perez Peñalta, Miguel Ángel Aggregates (Building materials) -- Recycling Recycled concrete aggregate Recycled aggregate concrete Workability Compressive strength Pavement Àrids (Materials de construcció) -- Reciclatge Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures The use of recycled aggregate to reduce the over-exploitation of raw aggregates is necessary. This study analysed and categorised the properties of water-washed, fine and coarse, recycled aggre-gates following European Normalization (EN) specification. Because of their adequate properties, zero impurities and chemical soluble salts, plain recycled concrete was produced using 100% recycled concrete aggregates. Two experimental phases were conducted. Firstly, a laboratory phase, and secondly, an on-site work consisting of a real-scale pavement-base layer. The workability of the produced concretes was validated using two types of admixtures. In addition, the compressive and flexural strength, physical properties, drying shrinkage and depth of penetration of water under pressure validated the concrete design. The authors concluded that the worksite-produced concrete properties were similar to those obtained in the laboratory. Consequently, the laboratory results could be validated for large-scale production. An extended slump value was achieved using 2.5–3% of a multifunctional admixture plus 1–1.2% of superplasticiser in concrete production. In addition, all the produced concretes obtained the required a strength of 20 MPa. Although the pavement-base was produced using 300 kg of cement, the concrete made with 270 kg of cement per m3 and water/cement ratio of 0.53 achieved the best properties with the lowest environmental impact. Peer Reviewed Multidisciplinary Digital Publishing Institute (MDPI) https://hdl.handle.net/2117/375171 https://dx.doi.org/10.3390/su14020708 |
| spellingShingle | Water-washed fine and coarse recycled aggregates for real scale concretes production in Barcelona Etxeberria Larrañaga, Miren|||0000-0003-2208-6207 Aggregates (Building materials) -- Recycling Recycled concrete aggregate Recycled aggregate concrete Workability Compressive strength Pavement Àrids (Materials de construcció) -- Reciclatge Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures |
| title | Water-washed fine and coarse recycled aggregates for real scale concretes production in Barcelona |
| title_full | Water-washed fine and coarse recycled aggregates for real scale concretes production in Barcelona |
| title_fullStr | Water-washed fine and coarse recycled aggregates for real scale concretes production in Barcelona |
| title_full_unstemmed | Water-washed fine and coarse recycled aggregates for real scale concretes production in Barcelona |
| title_short | Water-washed fine and coarse recycled aggregates for real scale concretes production in Barcelona |
| title_sort | Water-washed fine and coarse recycled aggregates for real scale concretes production in Barcelona |
| topic | Aggregates (Building materials) -- Recycling Recycled concrete aggregate Recycled aggregate concrete Workability Compressive strength Pavement Àrids (Materials de construcció) -- Reciclatge Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures |
| topic_facet | Aggregates (Building materials) -- Recycling Recycled concrete aggregate Recycled aggregate concrete Workability Compressive strength Pavement Àrids (Materials de construcció) -- Reciclatge Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures |
| url | https://hdl.handle.net/2117/375171 https://dx.doi.org/10.3390/su14020708 |