2026-06-10T13:31:58Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/74402023-03-28T12:47:59Zcom_10259_6251com_10259_5086com_10259_2604col_10259_6252

Alameda Cuenca-Romero, Lourdes 639 600 0000-0002-5887-4005 Arroyo Sanz, Raquel 832 500 0000-0002-8415-1927 Alonso Díez, Álvaro 640 600 0000-0002-9023-7401 Gutiérrez González, Sara 269 600 0000-0002-9860-1044 Calderón Carpintero, Verónica 89 600 0000-0001-6863-5473 2023-02-10T09:24:48Z 2023-02-10T09:24:48Z 2022-06 2352-7102 http://hdl.handle.net/10259/7440 10.1016/j.jobe.2022.104075 In accordance with the European politics of reducing the amount of polymers and plastics wastes, the inclusion of compounds such as roof wastes as recycled and reusable materials to replace variable amounts of aggregates is interesting in the production of new construction materials due to their physical and chemical behaviour. Prefabricated mortar blocks have made with Portland cement, sand, water and grinded roof polyurethane based wastes from the automobile industry that replace in different amounts part or all of the aggregates. To try to avoid the mechanical resistance limitation due to the use of roof wastes, the chemical properties of the binders have been modified with non-ionic surfactants that improve the effect on the hydration of the clinker. This variation produces an important change in the mechanical resistance to achieve recycled structural materials with a density between 18.7% and 62.7% lower compared to conventional lightweight mortars. In addition, these surfactants improve other properties including workability, compaction of the matrix, prevent the disintegration of the particles and help to improve the mechanical properties and durability against fire to reinforce the materials. These eco-mortars have a good behaviour against temperature of the final envelope, measured in terms of non-combustibility test. With these results, the use of roof wastes can be consider as a sustainable alternative to the materials currently used and then with them we can be able to contribute to a more ecological business model in the building sector. This study was carried out within the framework of the financial support of BU070P20 Project funded by the Fondo Europeo de Desarrollo Regional (FEDER) of the EU and the Junta de Castilla y León (Spain). application/pdf eng Elsevier Journal of Building Engineering. 2022, V. 50, 104075 https://doi.org/10.1016/j.jobe.2022.104075 info:eu-repo/grantAgreement/Junta de Castilla y León//BU070P20//Prefabricados de mortero eco-eficientes aligerados con residuos poliméricos industriales con propiedades estructurales y térmicas mejoradas/ Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Ecoblocks Lightweight mortar Fire resistance Polyurethane Confocal microscopy Materiales de construcción Ingeniería Building materials Engineering Characterization properties and fire behaviour of cement blocks with recycled polyurethane roof wastes info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Journal of Building Engineering 50 THUMBNAIL Alameda-jbe_2022.pdf.jpg Alameda-jbe_2022.pdf.jpg IM Thumbnail image/jpeg 4784 https://riubu.ubu.es/bitstream/10259/7440/4/Alameda-jbe_2022.pdf.jpg c06ff0332c3e444e745718710ff2913e MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/7440/3/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/7440/2/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 2 ORIGINAL Alameda-jbe_2022.pdf Alameda-jbe_2022.pdf application/pdf 8981279 https://riubu.ubu.es/bitstream/10259/7440/1/Alameda-jbe_2022.pdf de090a9c9472c709e74d01e8c52a632b MD5 1 10259/7440 oai:riubu.ubu.es:10259/7440 2023-03-28 14:47:59.347 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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