2026-04-27T14:12:20Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/112492026-01-21T09:40:51Zcom_10259_11203com_10259_5086com_10259_2604col_10259_11250

Arroyo Sanz, Raquel Alameda Cuenca-Romero, Lourdes Alonso Díez, Álvaro González Moreno, Sara Calderón Carpintero, Verónica Gutiérrez González, Sara Rodríguez Sáiz, Ángel 2026-01-20T13:39:41Z 2026-01-20T13:39:41Z 2021 978-1-78466-437-4 https://hdl.handle.net/10259/11249 10.2495/MC210101 Comunicación presentada en: 10th International Conference on Computational Methods and Experiments in Material and Contact Characterisation, 7 July 2021 - 9 July 2021, Virtual, Online In accordance with the European politics of reducing the amount of plastics and polymers sited in landfills, 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. Mortars made with Portland cement, sand, water and grinded roof wastes from the automobile industry that replace in different amounts part or all of the aggregates are examined in this study. 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 changed 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 low density compared to conventional light mortars. In addition, these additives improve other properties including workability, compaction of the matrix, prevent the disintegration of the particles and help to improve the mechanical properties, ductility, thermal resistance and durability against fire to reinforce the materials. These ecomortars have a lower thermal conductivity as more quantity of roof wastes are incorporated, which greatly favours the thermal insulation of the final envelope, as well as a good behaviour against temperature, measured in terms of thermogravimetry and non-combustibility test. With these results, we can consider the use of roof wastes 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. Authors gratefully acknowledge 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 WITPress WIT Transactions on Engineering Sciences. 2021, V. 133, p. 101-105 https://doi.org/10.2495/MC210101 Fire resistance Lightweight prefabricated Polyurethane Recycled ceiling Materiales de construcción Arquitectura sostenible Building materials Sustainable architecture Thermal and fire behaviour of cement blocks with recycled roof wastes info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/openAccess 1 101 105