Evaluation of Characteristics and Building Applications of Multi-Recycled Concrete Aggregates from Precast Concrete Rejects
The construction industry must meet current environmental requirements, mostly those pertaining to the reduction in construction and demolition waste and the consumption of raw materials. The use of recycled concrete aggregates can be part of the solution, but one question that arises is how many ti...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Consejo General de la Arquitectura Técnica de España (CGATE) |
| Repositorio: | RIARTE |
| OAI Identifier: | oai:www.riarte.es:20.500.12251/2870 |
| Acceso en línea: | http://hdl.handle.net/20.500.12251/2870 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85137659465&doi=10.3390%2fma15165714&partnerID=40&md5=69af4c1eb91dca6901c70e16892b0f25 |
| Access Level: | acceso abierto |
| Palabra clave: | Impacto medioambiental Industria de la construcción Residuos de Construcción Demolición (RCD) Hormigón reciclado Áridos reciclados Prefabricados 3313.04 Material de Construcción 3308.07 Eliminación de Residuos 3312.08 Propiedades de Los Materiales 3312.12 Ensayo de Materiales |
| Sumario: | The construction industry must meet current environmental requirements, mostly those pertaining to the reduction in construction and demolition waste and the consumption of raw materials. The use of recycled concrete aggregates can be part of the solution, but one question that arises is how many times recyclables can be recycled. This unknown involves other related queries regarding the properties and possible uses of repeated recycled concrete aggregates. This research is derived from the precast concrete industry, where multi-recycling is a pressing need. From good-quality parent concretes, three cycles of recycled concrete aggregates were produced and analysed. The final results are promising due to the good quality of the recycled and multi-recycled concrete aggregates obtained. Not only can they be used in low-level applications (backfilling) as usual, but they can also be used for more demanding purposes, such as graded aggregates, cement-treated road bases and concrete pavements. Their use in structural concrete is feasible, but it will be dependent on the water absorption level and the amount of recycled aggregate substitution. This research proves the viability of multi-recycled concrete aggregates with all of the associated environmental benefits. © 2022 by the authors. |
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