Life Cycle Impact Assessment of Load-Bearing Straw Bale Residential Building

Vaňová, Rozália; Vlcko, Michal; Štefko, Jozef

doi:10.3390/ma14113064

Cited by 18 publications

(11 citation statements)

References 21 publications

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“…However, introducing abiotic insulation material lowered carbon removals, resulting in an overall carbon balance of almost 3% compared to the LDF alternative. Therefore, it can be concluded that natural-based construction materials might not be a sustainable solution that complies with the findings of other authors [31,32]. However, future studies might be focused on the application of bark-based panel insulation [33].…”

Section: Discussionsupporting

confidence: 76%

Environmental Impact of a Mass Timber Building—A Case Study

Vaňová

Stompf

Štefko

et al. 2021

Forests

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The study focuses on a life cycle assessment of a wood-based residential building and evaluates the magnitude of individual construction components—foundations, flooring, peripheral wall, inner walls, ceiling, roof, windows, and doors—in terms of climate change; acidification; eutrophication; photochemical oxidation; depletion of abiotic elements and fossil fuels; and water scarcity categories within the system boundaries of the Product stage of the life cycle. The assessment was done using the SimaPro software and the ecoinvent database. The results pointed at the advantages of mass timber as a construction material and highlighted the significance in the type of insulation used. Foundations were found to bear the highest share of impact on photochemical oxidation reaching nearly 30% and depletion of fossil fuels accounting for about 25% of that impact. Peripheral wall was ranked the worst in terms of impact on acidification and eutrophication (more than 25% of both), depletion of elements (responsible for 50% of that impact), and had about 60% impact on water scarcity. After adding up carbon emissions and removals, the embodied impact of the whole construction on climate change was detected to be 8185.19 kg CO2 eq emissions which corresponded with 57.08 kg CO2 eq/m2 of gross internal area. A negative carbon composition of the construction was also set.

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Section: Discussionsupporting

confidence: 76%

Environmental Impact of a Mass Timber Building—A Case Study

Vaňová

Stompf

Štefko

et al. 2021

Forests

Self Cite

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“…Current insulation materials such as polystyrene, polyisocyanurate, and PUR foams in the construction market are generally based on fossil resources with a great insulation performance but with high environmental impact due to their production processes [ 19 , 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Thermophysical Properties of Larch Bark Composite Panels

et al. 2021

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The effects of using 100% larch bark (Larix decidua Mill) as a raw material for composite boards on the thermophysical properties of this innovative material were investigated in this study. Panels made of larch bark with 4–11 mm and 10–30 mm particle size, with ground bark oriented parallel and perpendicular to the panel’s plane at densities varying from 350 to 700 kg/m3 and bonded with urea-formaldehyde adhesive were analyzed for thermal conductivity, thermal resistivity and specific heat capacity. It was determined that there was a highly significant influence of bulk density on the thermal conductivity of all the panels. With an increase in the particle size, both parallel and perpendicular to the panel´s plane direction, the thermal conductivity also increased. The decrease of thermal diffusivity was a consequence of the increasing particle size, mostly in the parallel orientation of the bark particles due to the different pore structures. The specific heat capacity is not statistically significantly dependent on the density, particle size, glue amount and particle orientation.

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“…The use of sustainable and recyclable materials is an important aspect to warrant a healthy environment. Many studies scrutinized the environmental and technical benefits of using sustainable materials (natural or recycled) as basic elements to produce commonly used as well as new porous materials (granular or fibrous) [11][12][13][14][15][16][17][18] such as rice husk, cotton stalk, jute fiber, straws of wheat, hemp, flax, coconut fibers, stalks of maize and sheep's wool [19][20][21][22][23][24][25]. These lignocellulosic materials, when used appropriately, can provide thermal and acoustic insulation performance comparable with the most used insulation materials, but with excellent environmental properties [26].…”

Section: Introductionmentioning

confidence: 99%

Acoustic Properties of Larch Bark Panels

Tudor

Krišťák

Barbu

et al. 2021

Forests

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The potential of tree bark, a by-product of the woodworking industry, has been studied for more than seven decades. Bark, as a sustainable raw material, can replace wood or other resources in numerous applications in construction. In this study, the acoustic properties of bark-based panels were analyzed. The roles of the particle size (4–11 mm and 10–30 mm), particle orientation (parallel and perpendicular) and density (350–700 kg/m3) of samples with 30 mm and 60 mm thicknesses were studied at frequencies ranging from 50 to 6400 Hz. Bark-based boards with fine-grained particles have been shown to be better in terms of sound absorption coefficient values compared with coarse-grained particles. Bark composites mixed with popcorn bonded with UF did not return the expected results, and it is not possible to recommend this solution. The best density of bark boards to obtain the best sound absorption coefficients is about 350 kg/m3. These lightweight panels achieved better sound-absorbing properties (especially at lower frequencies) at higher thicknesses. The noise reduction coefficient of 0.5 obtained a sample with fine particles with a parallel orientation and a density of around 360 kg/m3.

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Life Cycle Impact Assessment of Load-Bearing Straw Bale Residential Building

Cited by 18 publications

References 21 publications

Environmental Impact of a Mass Timber Building—A Case Study

Environmental Impact of a Mass Timber Building—A Case Study

Thermophysical Properties of Larch Bark Composite Panels

Acoustic Properties of Larch Bark Panels

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