Exploring bio-based materials for acoustic applications: Sustainable solutions and performance analysis

Quirion, Thomas and Ouellet-Plamondon, Claudiane. 2025. « Exploring bio-based materials for acoustic applications: Sustainable solutions and performance analysis ». In Bio-Based Building Materials - Proceedings of ICBBM 2025, Volume 1 (Rio de Janeiro, Brazil, June 17-20, 2025) Coll. « RILEM Bookseries », vol. 60. pp. 445-456. Springer Nature.

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Abstract

This review explores advancements in sustainable bio-based materials, focusing on acoustic panels derived from natural materials. There is increasing interest in shifting modern acoustic strategies away from petrochemical and resource-intensive materials, toward renewable, eco-friendly, non-chemical alternatives, particularly for non-structural applications like acoustic treatment. These applications prioritize soundproofing and insulation without compromising structural integrity. Key evaluation metrics for characterizing bio-based materials for acoustic purposes are presented. Frequency-specific Acoustic Absorption Coefficients are evaluated for all materials. Additionally, when data is available, the weighted Acoustic Absorption Coefficient and Noise Reduction Coefficient are included to provide a more comprehensive assessment of acoustic performance. This ensures the understanding of panel performance in listening spaces in relation to human hearing and acoustic treatment solutions for varied applications. Natural fibers such as flax, wood, hemp and animal wool are assessed for their potential as acoustic bio-based materials, with a focus on leveraging locally available resources considering Québec, Canada. Properties such as porosity, microstructure, texture, and density are critical for classifying and optimizing the characterization of bio-based materials. In the context of reducing the embodied carbon footprint of construction materials, bio-based materials offer a versatile and sustainable alternative for acoustic applications, demonstrating promising acoustic and environmental performance. This article aims to provide a foundation for more advanced research in bio-based materials for vibration control, soundproofing and sound insulation.

Item Type:	Conference proceeding
ISBN:	978-3-031-92777-5
Professor:	Professor Ouellet-Plamondon, Claudiane
Affiliation:	Génie de la construction
Date Deposited:	30 Jul 2025 13:41
Last Modified:	01 Aug 2025 13:28
URI:	https://espace2.etsmtl.ca/id/eprint/31170

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