Life cycle assessment of innovative insulation panels based on eucalyptus bark fibers

Casas-Ledón, Yannay; Salgado, Karen Daza; Cea, Juan; Arteaga-Pérez, Luis E.; Fuentealba, Cecilia

doi:10.1016/j.jclepro.2019.119356

Cited by 31 publications

(7 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Noise control is an important issue in modern life. A lot of factors contribute to its increase, e.g., population growth, expansion of the urban centers, densification of the housing sector, correlated to the number of vehicles, the development of automatic machines in industrial companies and devices [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…The human audible frequency range extends up to 15 kHz for most persons, and can reach 20 kHz for children and young people [10]. The sound absorption coefficient gives information about the acoustical effectiveness of a material and is defined as the fraction of the energy of incident sound waves absorbed by the material [1,4]. The values of the sound absorption coefficient are between 0 (no absorption) and 1 (complete absorption, e.g., acoustical walls in recording studios) [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sound-Absorption Coefficient of Bark-Based Insulation Panels

Tudor

Dettendorfer²,

Kain

et al. 2020

Polymers

View full text Add to dashboard Cite

The objective of this study was to investigate the sound absorption coefficient of bark-based insulation panels made of softwood barks Spruce (Picea abies (L.) H. Karst.) and Larch (Larix decidua Mill.) by means of impedance tube, with a frequency range between 125 and 4000 Hz. The highest efficiency of sound absorption was recorded for spruce bark-based insulation boards bonded with urea-formaldehyde resin, at a level of 1000 and 2000 Hz. The potential of noise reduction of larch bark-based panels glued with tannin-based adhesive covers the same frequency interval. The experimental results show that softwood bark, an underrated material, can substitute expensive materials that involve more grey energy in sound insulation applications. Compared with wood-based composites, the engineered spruce bark (with coarse-grained and fine-grained particles) can absorb the sound even better than MDF, particleboard or OSB. Therefore, the sound absorption coefficient values strengthen the application of insulation panels based on tree bark as structural elements for the noise reduction in residential buildings, and concurrently they open the new ways for a deeper research in this field.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sound-Absorption Coefficient of Bark-Based Insulation Panels

Tudor

Dettendorfer²,

Kain

et al. 2020

Polymers

View full text Add to dashboard Cite

show abstract

“…Furthermore, it was found that the formaldehyde emissions of finished boards are much lower than that of other woodbased panels. Another interesting research study deals with Life Cycle Assessment (LCA) of an innovative insulation panel based on eucalyptus bark fibres [9]. The eucalyptus bark panels, with densities in the 25-50 kg/m 3 range, showed lower embodied energy and carbon emissions than traditional insulation materials (expanded polyurethane, polystyrene, glass fibres, and glass wool).…”

Section: Introductionmentioning

confidence: 99%

Production of eco-sustainable insulating panels by recovering wood waste: fabrication and preliminary experimental characterization of thermal and acoustic properties

2020

View full text Add to dashboard Cite

The work was developed in the ReScaLe FiAer project framework, funded by the Fondazione Cassa di Risparmio di Perugia. It is focused on the identification and collection of multiple high quality wood waste from a local window manufacturer. Three types of wood were available, from different tree species (pine, oak, and mahogany) and sizes (pieces of wood, mixed coarse chips, and mixed fine chips). Preliminary analyses were performed in order to evaluate the properties of the raw material. For each type of wood, eco-sustainable panels (300x300 mm2) were assembled by gluing. Multiple tests were carried out in order to identify the optimal mixtures and to ensure a good mechanical resistance with the minimum adhesive use. Panels were assembled by using vinyl glue, easily available and cheap, and flour glue, with a lower environmental impact and safe for people’s health. The thermal conductivity of the panels was measured by means of the Small Hot Box experimental apparatus: it varies in the 0.071-0.084 W/mK range, at an average temperature of 10°C, depending on the tree species and regardless of the type of adhesive used. Furthermore, 100-mm diameter cylindrical samples with two different thicknesses for each type of wood and glue were fabricated, in order to investigate their acoustic behaviour in an impedance tube. The use of flour glue improves the sound absorption and insulation performance of the samples.

show abstract

“…A few studies are available in the literature about the environmental impact of woodwaste panels. A research study [26] deals with life cycle assessment (LCA) of an innovative insulation panel based on eucalyptus bark fibers, with densities in the 25 to 50 kg/m 3 range. It showed embodied energy and carbon emissions lower than traditional insulation materials (expanded polyurethane, polystyrene, glass fibers, and glass wool).…”

Section: Wood-waste Panelsmentioning

confidence: 99%

Eco-Sustainable Wood Waste Panels for Building Applications: Influence of Different Species and Assembling Techniques on Thermal, Acoustic, and Environmental Performance

2021

View full text Add to dashboard Cite

Multiple high quality wood waste from a window manufacturer is identified and collected. Eco-sustainable panels, with promising acoustic and thermal insulating performance, were then fabricated. The available wood is of different tree species (pine, oak, and mahogany) and size (pieces of wood, mixed coarse chips, and mixed fine chips). Moreover, scraps of olive tree pruning from local areas were collected for reuse. The aim of the research is to assembly panels (300 × 300 mm2) both with different techniques (hand-made and hot-pressed) and type of adhesive (vinyl and flour glues) and to evaluate their thermal, acoustic, and environmental performance. All the panels present thermal and acoustic performance comparable with the similar ones available in the literature or with commercial solutions. The thermal conductivity varies in the 0.071 to 0.084 W/mK range at an average temperature of 10 °C, depending on the tree species, the assembly technique, and regardless of the type of adhesive used. Oak wood panels are characterized by both better sound absorption (α peak value of 0.9, similar to pine pressed sample with flour glue) and insulation (transmission loss up to 11 dB at 1700 Hz) properties. However, their added value is the low environmental impact assessed through life cycle analysis in compliance with ISO 14040, especially for panels assembled with natural glue.

show abstract

Life cycle assessment of innovative insulation panels based on eucalyptus bark fibers

Cited by 31 publications

References 28 publications

Sound-Absorption Coefficient of Bark-Based Insulation Panels

Sound-Absorption Coefficient of Bark-Based Insulation Panels

Production of eco-sustainable insulating panels by recovering wood waste: fabrication and preliminary experimental characterization of thermal and acoustic properties

Eco-Sustainable Wood Waste Panels for Building Applications: Influence of Different Species and Assembling Techniques on Thermal, Acoustic, and Environmental Performance

Contact Info

Product

Resources

About