RT info:eu-repo/semantics/conferenceObject T1 Eco-efficient concrete in the circular economy of the precast industry: an example of sustainability A1 Fiol Olivan, Francisco A1 Garabito López, Javier A1 Muñoz Ruipérez, Carmelo A1 Manso Villalaín, Juan Manuel A1 Revilla Cuesta, Víctor A1 Ortega López, Vanesa K1 Materiales de construcción K1 Building materials K1 Hormigón-Ensayos K1 Concrete-Testing AB The circular economy is an economic model of production and consumption that involves reusing, repairing, restoring, and recycling materials after their useful life. The use of waste as raw materials is one of the actions to establish this model incompanies to achieve emissions at zero or neutral cost. The European prefabricated directives promote the implementation of a series of voluntary sustainability actions such as: the reduction of waste to be sent to landfill, the increase of additions to cementof at least 25%, an increase of 25% in the proportion of recycled aggregates to be used and reduction or recycling of water consumption, all for the benefit of reducing CO2.This work exposes a real example of a company of prefabricated structural elementsof construction applying the previous actions, incorporating a waste centre for its own and external use, where the waste materials are given a second life generating a new concrete. This new recycled concrete is designed with the substitution of naturalaggregates for recycled aggregates in different proportions, even up to 100%, using recycled additions to the cement, using recycled water from the concreting plant itself in its process. The sustainable eco-concrete resulting from HR-30 and HR-45resistance, self-compacting, is mechanically characterized and incorporated into the prefabricated elements tested also in prototypes against bending, shear and deformation stresses. PB EDP Sciences SN 2555-0403 YR 2023 FD 2023-04 LK http://hdl.handle.net/10259/10252 UL http://hdl.handle.net/10259/10252 LA eng NO Póster presentado en: 13th International Conference on Future Environment and Energy ICFEE 2023, durante los días 13-15 de enero en Tokyo NO This research work was supported by the Spanish Ministry of Universities, MICINN, AEI, EU, ERDF and NextGenerationEU [grant numbers PID2020-113837RB-I00; 10.13039/501100011033; TED2021-129715B-I00]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231]; and the University of Burgos [grant number SUCONS, Y135.GI]. DS Repositorio Institucional de la Universidad de Burgos RD 03-mar-2025