2024 - Sustainable Industrial Processing Summit
SIPS 2024 Volume 8. Monteiro Intl. Symp / Composite, Ceramic and Nano Materials Processing
| Editors: | F. Kongoli, P. Assis, H.A.C. Lopera, S. Diaz, V. Scarpini Candido |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2024 |
| Pages: | 288 pages |
| ISBN: | 978-1-998384-18-1 (CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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ACOUSTIC PERFORMANCE ANALYSIS OF SUBFLOOR WITH RUBBER POWDER FROM END-OF-LIFE TIRE WASTE
Larissa Botelho1; Gustavo Oliveira1; Gustavo Xavier1; Jonas Alexandre1; José Lima1; Afonso Rangel Garcez de Azevedo2; Sergio Monteiro3;1STATE UNIVERSITY OF THE NORTHERN RIO DE JANEIRO, Campos dos Goytacazes , Brazil; 2NORTH FLUMINENSE STATE UNIVERSITY DARCY RIBEIRO (UENF), Campos dos Goytacazes, Brazil; 3MILITARY INSTITUTE OF ENGINEERING, Rio de Janeiro, Brazil;
Type of Paper: Regular
Id Paper: 215
Topic: 18
Abstract:
Noise pollution is increasingly recognized as a public health issue, with studies linking excessive noise exposure to a range of adverse health problems, such as sleep disturbance, stress-related disorders, cardiovascular diseases, and cognitive impairment. This growing awareness of the detrimental effects of noise pollution has underscored the importance of acoustic comfort in buildings on a global scale, highlighting the control of noise propagation in determining the final quality of architectural projects.In response to this recognition of the importance of acoustic building comfort and the elevated frequency of complaints of users regarding noise generated, particularly in multi-story buildings, Brazilian Standard was implemented in 2013. This standard is designed to guarantee acoustic performance and meet the expectations of building users by setting forth acceptable noise transmission levels. Furthermore, in 2021, additional standards addressing acoustic insulation and field measurements of airborne noise were also introduced [7,8], further solidifying the commitment to ensuring optimal acoustic conditions within buildings and enhancing occupant comfort and well-being. The imperative of establishing conducive acoustic environments led to an increase in research and development efforts, resulting in novel materials and construction methodologies attuned to the exigencies of architecture. It is known that to achieve the goal of mitigating sounds transmitted through a building structure, it is essential to disrupt the rigid connection responsible for propagating mechanical vibration. The incorporation of highly porous materials into floors offers potential for bolstering sound absorption capabilities. Strategies such as altering the impact surface, using elastic separation, or introducing resilient materials between the floor covering and structural slab prove to be efficient and became common. Despite these solutions demanding specialized labor for execution, there remains a dearth of research assessing their actual acoustic performance.Integrating environmental awareness with advances in acoustic engineering, civil construction emerges as a leading sector actively integrating recycled solid waste into building components to promote sustainability, consequently enhancing acoustic performance [1,2]. These solutions not only exhibit superior soundproofing characteristics but also complement sustainability goals.An example of waste that is readily and abundantly found in Brazil, and, above all, must be handled properly, is the end-of-life tire. This material has been the focus of numerous studies exploring its integration into mortars [3-5]. According to Institute of Environment and Renewable Natural Resources [6], over a million new tires were manufactured, generating more than five hundred thousand tons of end-of-life tire waste in Brazil in 2017. Furthermore, tire rubber is classified as Class II non-hazardous waste, indicating that it poses no potential risks to the environment and public health [7].To actively contribute to the mitigation of noise in multi-story buildings and to further the goals of sustainability, this study delves into the incorporation of rubber derived from end-of-life tire waste into the mortar used for subfloor applications. The investigation aims to assess the effectiveness of this innovative approach in enhancing acoustic insulation and promoting environmentally conscious construction practices.