A Comparison of the Environmental Performance between Construction Materials and Operational Energy of Nearly Zero-Energy Wood-Based Educational Building

Mitterpach, Jozef; Vaňová, Rozália; Šedivka, Přemysl; Štefko, Jozef

doi:10.3390/f13020220

Cited by 11 publications

(5 citation statements)

References 47 publications

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“…The majority of studies (55%) adopted a cradle-to-grave boundary, that is, the object of analysis was the entire life cycle of the product, from the extraction of raw materials to disposal or recycling (Chiniforush Around 39% of the studies adopted a cradle-to-gate boundary, that is, they considered the life cycle from the extraction of raw materials to some point in the life cycle of the product system (Chen, Pierobon, Ganguly, 2019;Connolly et al, 2018;Salles e Portugal et al, 2018;Mitterpach, Igaz, Stefko, 2020;Pal et al, 2017;Pierobon et al, 2019;Puettmann, Sinha, Ganguly, 2019;Robertson, Lam, Cole, 2012;Santi et al, 2016;Skullestad, Bohne, Lohne, 2016;Takano et al, 2014;Zeitz, Griffin, Dusicka, 2019;Zigart et al, 2018). The gate-to-gate boundary was the least adopted and covered only 6% of the selection (Dong et al, 2019).…”

Section: System Boundariesmentioning

confidence: 99%

Life cycle assessment of cross laminated timber: a systematic literature review

Sanchotene,

Fischer,

Monteiro

et al. 2024

CLCS

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Cross Laminated Timber (CLT) is an engineered wood material that has been used in civil construction in structural functions previously reserved for materials such as steel or concrete. As it is a renewable material and promotes carbon sequestration, its use in civil construction is linked to mitigating global warming promoted by the industry. However, the increase in demand for this material raises questions about sustainability and what the environmental burden would be resulting from its mass production. Life Cycle Assessment (LCA) is an environmental management tool that can analyze this product chain as it maps and quantifies emissions and resource consumption from the production process, providing support for the calculation and analysis of environmental impacts. The goal of this study was to observe how the most recent research has been developed methodologically in terms of scope and what are the main scientific gaps presented in LCA studies of CLT material throughout its life cycle. To this end, a systematic literature review was carried out based on the Systematic Search Flow (SSF) method by Ferenhof and Fernandes (2014). The review points out the growing interest of the scientific community in the environmental profile of the product and the scope definitions were mostly cradle-to-grave study boundaries; the most applied functional unit is m² of building; impact analysis focus on quantifying global warming potential, energy resource consumption and carbon sequestration. The studies point to the end of life and the accounting of the material's biogenic emissions as scientific gaps, as well as the lack of studies with Brazilian data.

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Section: System Boundariesmentioning

confidence: 99%

Life cycle assessment of cross laminated timber: a systematic literature review

Sanchotene,

Fischer,

Monteiro

et al. 2024

CLCS

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“…Wood is a viable material that is suitable for use in different applications. In civil construction, it has been highly recommended worldwide because of its sustainability since it is a renewable natural resource with low energy consumption and a great contribution to reducing greenhouse gases [ 1 , 2 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Reducing the Size and Number of Faces of Polyhedral Specimen on Wood Characterization by Ultrasound

2023

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The complete characterization of wood, with the determination of the 12 elastic constants that represent its orthotropy, is greatly relevant in applications employing structural calculation software programs. Ultrasound allows for such characterization with relative simplicity when compared to other methods. The polyhedron is considered the most appropriate specimen format for allowing the 12 constants to be calculated with a single specimen, and the traditionally used one is the 26-sided polyhedron, which, to be produced manually with more precision in directing the main directions of the wood, needs larger faces. The accuracy of this technique tends to be reduced when increasing the growth rings’ inclination since the waves deviate from the main directions of orthotropy. This research aimed to verify whether it is possible to reduce the polyhedra dimension without affecting the results of the elastic parameters obtained in wood characterization by ultrasound. The results indicate that the dimension of the polyhedron can be reduced without prejudice to the results of the elastic parameters obtained by the ultrasound test and that, in the manual production process of the specimen, the best way to make this reduction is to eliminate the faces unused in the test, changing the polyhedron to 18 faces instead of 26. Reducing the number of faces simplifies the manufacturing process and thus increases the possibility of producing specimens with straighter growth rings and better-directed symmetry axes.

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“…In the construction sector, non-renewable resources such as steel, cement and concrete are used as the primary material, emitting considerable amounts of CO 2 during the processing, affecting the environmental climate and consuming large amounts of energy. According to statistics, energy consumption in the building sector reaches around 40% of the total global energy consumption [ 1 , 2 , 3 , 4 , 5 ]. Therefore, the extensive use of green and renewable resources in the construction sector is a decisive step toward promoting sustainable social development.…”

Section: Introductionmentioning

confidence: 99%

Acrylic Resin Filling Cell Lumen Enabled Laminated Poplar Veneer Lumber as Structural Building Material

Gao

Liu

et al. 2022

Polymers

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Wood is a viable alternative to traditional steel, cement, and concrete as a structural material for building applications, utilizing renewable resources and addressing the challenges of high energy consumption and environmental pollution in the construction industry. However, the vast supply of fast-growing poplar wood has bottlenecks in terms of low strength and dimensional stability, making it difficult to use as a structural material. An environmentally friendly acrylic resin system was designed and cured in this study to fill the poplar cell cavities, resulting in a new type of poplar laminated veneer lumber with improved mechanical strength and dimensional stability. The optimized acrylic resin system had a solid content of 25% and a curing agent content of 10% of the resin solid content. The cured filled poplar veneer gained 81.36% of its weight and had a density of 0.69 g/cm3. The static flexural strength and modulus of elasticity of the further prepared laminated veneer lumber were 123.12 MPa and 12,944.76 MPa, respectively, exceeding the highest flexural strength required for wood structural timber for construction (modulus of elasticity 12,500 MPa and static flexural strength 35 MPa). Its tensile strength, impact toughness, hardness, attrition value, water absorption, water absorption thickness expansion, and water absorption width expansion were 58.81%, 19.50%, 419.18%, 76.83%, 44.38%, 13.90%, and 37.60% higher than untreated laminated veneer lumber, demonstrating improved mechanical strength and dimensional stability, significantly. This method provides a novel approach to encouraging the use of low-value-added poplar wood in high-value-added structural building material applications.

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A Comparison of the Environmental Performance between Construction Materials and Operational Energy of Nearly Zero-Energy Wood-Based Educational Building

Cited by 11 publications

References 47 publications

Life cycle assessment of cross laminated timber: a systematic literature review

Life cycle assessment of cross laminated timber: a systematic literature review

Effect of Reducing the Size and Number of Faces of Polyhedral Specimen on Wood Characterization by Ultrasound

Acrylic Resin Filling Cell Lumen Enabled Laminated Poplar Veneer Lumber as Structural Building Material

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