RT info:eu-repo/semantics/article T1 The use of waste tyre rubber recycled products in llghtweight timber frame systems as acoustic insulation: A comparative analysis of acoustic performance A1 Balmori Roiz, José Antonio A1 Casado Sanz, María Milagrosa A1 Machimbarrena Gutiérrez, María de la O A1 Quirós Alpera, Susana A1 Mostaza Fernández, Roberto A1 Acuña Rello, Luis K1 Sustainability K1 Sostenibilidad K1 Rubber K1 Caucho K1 Neumáticos K1 Recycled products K1 Reciclaje K1 Waste products as building materials K1 Building materials K1 Construcción - Materiales K1 Sound absorption K1 Aislamiento acústico K1 Sustainable construction K1 Construcción - Aspecto del medio ambiente K1 Sustainable architecture K1 Arquitectura - Aspecto del medio ambiente K1 Building Construction and Design K1 Building, Wooden K1 Construcción de madera K1 Materials science K1 3313.04 Material de Construcción K1 2201 Acústica K1 2201.05 Ruido K1 3312 Tecnología de Materiales AB The current European standards demand more energy-efficient, comfortable, and sustainable buildings and encourage the incorporation of recycled materials in building construction. Timber buildings are successfully competing with traditional building materials in addressing these challenges; however, one of the weaknesses of timber systems is their limited sound insulation capacity. One material that can fit into the sustainability aims of timber construction and improve its acoustic performance is recycled ground tyre rubber (GTR), which, on top of this, is a serious environmental problem. This paper presents research on the use of GTR materials combined with timber systems in order to improve their acoustic performance. Three different types of GTR products (granulate, rolls, and sheets) of different thicknesses and densities are selected and are combined with different sound-absorbing materials (mineral wool, cellulose, and wood fibre) inside a lightweight timber sandwich system. In this study, the first qualitative approach, the acoustic performance of the different resulting systems is compared based on the sound pressure level difference measured in a custom-made reduced-size transmission chamber. Secondly, the sound reduction index of four selected specimens is measured in an accredited sound transmission laboratory. The results show that, for all the lightweight timber systems included in this research, introducing a GTR layer improves the acoustic performance of the system. PB MDPI SN 2075-5309 YR 2023 FD 2023 LK https://uvadoc.uva.es/handle/10324/67194 UL https://uvadoc.uva.es/handle/10324/67194 LA eng NO Buildings, 2024, Vol. 14, Nº. 1, 35 NO Producción Científica DS UVaDOC RD 15-jun-2024