Conveners
A10.10 Sustainable Materials for Acoustic Applications: S068
- Francesco Pompoli (University of Ferrara)
- Philippe Glé (Cerema, Univ. EIffel, UMRAE)
A10.10 Sustainable Materials for Acoustic Applications: P499
- Francesco Pompoli (University of Ferrara)
- Philippe Glé (Cerema, Univ. EIffel, UMRAE)
A10.10 Sustainable Materials for Acoustic Applications: S360
- Philippe Glé (Cerema, Univ. EIffel, UMRAE)
- Francesco Pompoli (University of Ferrara)
-
Janis Heldmann (Aalto University)10/09/2026, 14:20A10 Materials and Metamaterials
Foam-formed plant fibre materials are promising sustainable sound absorbers, but their manufacture creates dense drainage layers, producing internal densitygradients that violate the homogeneity assumption of standard equivalent-fluid models such as the Johnson–Champoux–Allard–Lafarge (JCAL) model. We investigatefoam-formed reed and lupine fibre materials using impedance tube measurements from...
Go to contribution page -
Clément PIEGAY (UMRAE Strasbourg)10/09/2026, 14:40A10 Materials and Metamaterials
Bio-based materials, such as vegetal wools, are promising alternatives to conventional building materials due to their carbon sequestration potential and sustainability. However, their high flammability necessitates the application of fire-retardant treatments, which may alter their microstructure and, consequently, their acoustic properties. This study evaluates the impact of a recently...
Go to contribution page -
Lucia Magnini (Department of Architecture, University of Florence)10/09/2026, 15:00A10 Materials and Metamaterials
This article presents the preliminary results of a study conducted by the Department of Architecture at the University of Florence in collaboration with the Italian National Consortium for the Recovery and Recycling of Cellulose-Based Packaging (COMIECO), focusing on the use of recycled cellulose-based materials for acoustic comfort in indoor environments. The study investigates various...
Go to contribution page -
Hajizah Azmi Siregar (Slovak University of Technology)10/09/2026, 15:00A10 Materials and Metamaterials
In this study, sound-absorbing materials were developed from grape stems, an abundant agricultural byproduct, as porous acoustic absorbers. Four types of porous samples were prepared: (i) loose grape stem particles without binder, (ii) particles bonded with sodium silicate (water glass), (iii) particles bonded with a flour-based, and (iv) grape stems foams with chemical processing. The...
Go to contribution page -
Lucia Magnini (Department of Architecture, University of Florence)10/09/2026, 15:00A10 Materials and Metamaterials
The aim of this research is to analyze potential uses for paper mill pulper waste, a by-product generated by paper mills that recycle paper-based composite materials, which is currently disposed of almost entirely in landfills or incinerators. The paper presents some preliminary results from sound absorption tests in an impedance tube and airflow resistance bench test. The results show...
Go to contribution page -
Clément PIEGAY (UMRAE Strasbourg)10/09/2026, 15:00A10 Materials and Metamaterials
Vegetal wools, composed of vegetal fibers and bicomponent polymer fibers, offer highly relevant multifunctional properties for green buildings but exhibit limited low-frequency acoustic absorption when used in thin panels. To optimize their performance, it is possible to rely on self-consistent homogenization methods. However, these methods require key data such as porosity and the effective...
Go to contribution page -
Thomas Frater (Wood K plus)10/09/2026, 15:20A10 Materials and Metamaterials
Given the global transition to a circular economy, there is a growing demand for sustainable, bio-based alternatives to synthetic materials used in construction. This study investigates the possibility of developing sustainable hemp fiber composites with biopolymer binders (chitosan, starch, and nanocellulose) and examines their applicability as acoustic insulation wall panels. Four types of...
Go to contribution page -
Rui Ribeiro (Amplitude Acoustics)10/09/2026, 16:20A10 Materials and Metamaterials
The search for sustainable alternatives to conventional porous absorbers has increased interest in bio-based materials for acoustic applications. This paper investigates the normal-incidence sound absorption performance of bonded oak-apple panels manufactured using two different processing strategies and compares their behavior with that of a commercial polyurethane foam of equal thickness....
Go to contribution page -
Hanna Bibi (Kaunas University of Technology)10/09/2026, 16:40A10 Materials and Metamaterials
In the context of circular economy and the growing need to mitigate noise pollution and reduce textile waste, recycled textile materials have emerged as viable alternative to conventional acoustic panels. Despite increasing research interest, studies on textile-based acoustic panels remain at an early stage, and a systematic comparision of sound absorption coefficient (SAC) values across...
Go to contribution page -
Philippe Glé (Cerema, Univ. EIffel, UMRAE)10/09/2026, 17:00A10 Materials and Metamaterials
Earthen constructions are promising solutions from an environmental perspective, as they rely on locally available resources, require low transformation processes, and can contribute to CO₂ storage when combined with vegetal particles. However, their acoustic performance remains poorly documented, and further evidence is needed to support and promote the use of various building systems (e.g.,...
Go to contribution page -
Denilson Ramos (University of Ferrara)10/09/2026, 17:20A10 Materials and Metamaterials
This work investigates analytical models for the thermoacoustic performance of sustainable fibrous materials. Among the analytical formulations considered, porosity is identified as the key parameter linking the semi-phenomenological acoustic formulations of the Johnson-Champoux-Allard (JCA) model to the effective thermal conductivity k_eff modelling. The primary objective is to propose an...
Go to contribution page -
Gioia Fusaro (University of Bologna)10/09/2026, 17:40A10 Materials and Metamaterials
The decarbonisation of building envelopes requires multifunctional façade components that integrate indoor comfort with low embodied environmental impacts. Acoustic Metamaterial Windows (AMWs) are an emerging façade solution capable of providing passive noise attenuation while preserving natural ventilation, yet their material sustainability has rarely been quantified. This paper presents a...
Go to contribution page