Wood waste as an alternative thermal insulation for buildings

Çetiner, İkbal; Shea, Andrew

doi:10.1016/j.enbuild.2018.03.019

Cited by 173 publications

(103 citation statements)

References 24 publications

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“…Inorganic materials such as carbon aerogel and silica aerogel also exhibited low thermal conductivity of 0.026-0.033 W/mK and their density was slightly higher than organic materials, but they were fragile [8,45]. Wood aerogels directly obtained from natural wood possessed lower thermal conductivity and density than natural wood and wood waste [46]. It is worth mentioning that, In practical applications, a low thermal conductivity was important for thermal insulation materials, while the density of the material was also critical.…”

Section: Thermal Insulationmentioning

confidence: 99%

“…Inorganic materials such as carbon aerogel and silica aerogel also exhibited low thermal conductivity of 0.026-0.033 W/mK and their density was slightly higher than organic materials, but they were fragile [8,45]. Wood aerogels directly obtained from natural wood possessed lower thermal conductivity and density than natural wood and wood waste [46]. It is worth mentioning that, although the thermal insulation performance of wood aerogel was lower than traditional organic materials and cellulose-based aerogel [47], the developed wood aerogel in this study showed much better biocompatibility, biodegradability, and mechanical compressibility, as well as simpler process technology [13,48].…”

Section: Thermal Insulationmentioning

confidence: 99%

See 1 more Smart Citation

Lightweight, Anisotropic, Compressible, and Thermally-Insulating Wood Aerogels with Aligned Cellulose Fibers

Sun

Lin

et al. 2020

Polymers

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The growing demand for lightweight, renewable, and excellent thermal insulation materials has fueled a search for high performance biomass materials with good mechanical compressibility and ultralow thermal conductivity. We propose a fabrication method for making a lightweight, anisotropic, and compressible wood aerogel with aligned cellulose fibers by a simple chemical treatment. The wood aerogel was mainly composed of highly aligned cellulose fibers with a relative crystallinity of 77.1%. The aerogel exhibits a low density of 32.18 mg/cm3 and a high specific surface area of 31.68 m2/g due to the removal of lignin and hemicellulose from the wood. Moreover, the multilayer structure of the aerogel was formed under the restriction of wood rays. Combined with a nanoscale pore, the aerogel presents good compressibility and an ultralow thermal conductivity of 0.033 W/mK. These results show that the wood aerogel is a high quality biomass material with a potential function of thermal insulation through optimizing structures.

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Section: Thermal Insulationmentioning

confidence: 99%

“…Inorganic materials such as carbon aerogel and silica aerogel also exhibited low thermal conductivity of 0.026-0.033 W/mK and their density was slightly higher than organic materials, but they were fragile [8,45]. Wood aerogels directly obtained from natural wood possessed lower thermal conductivity and density than natural wood and wood waste [46]. It is worth mentioning that, although the thermal insulation performance of wood aerogel was lower than traditional organic materials and cellulose-based aerogel [47], the developed wood aerogel in this study showed much better biocompatibility, biodegradability, and mechanical compressibility, as well as simpler process technology [13,48].…”

Section: Thermal Insulationmentioning

confidence: 99%

Lightweight, Anisotropic, Compressible, and Thermally-Insulating Wood Aerogels with Aligned Cellulose Fibers

Sun

Lin

et al. 2020

Polymers

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show abstract

“…For instance, a study on the environmental behavior of the building by means of Life Cycle Analysis is reported in Reference [4]. Although some researchers have studied the use of waste on facades, references are scarce and almost none are reported on the energy assessment of those recyclable additives and materials when integrated in a building [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Testing of the Integrated Energy Behavior of Sustainable Improved Mortar Panels with Recycled Additives by Means of Energy Simulation

et al. 2019

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Present waste management policies aim to reduce waste environmental impacts and improve resources’ efficiency. The use of waste and recycled materials to develop green construction materials are attracting researchers worldwide to develop new solutions addressed to increase the sustainability of buildings. This work presents a study of a new recycled mortar panel from the point of view of its contribution to the sustainability of buildings. Materials from industrial waste, as rigid polyurethane foam and electric arc furnace slags, are used as an additive of prefabricated mortar panels. The new proposed panels must have good thermal behavior with respect to the heat transfer interactions with the outside temperature and relative humidity, when compared to traditional brick or concrete. A test building with two kinds of representative uses, which are both residential and tertiary, and located in three cities of Spain with different climates, will be energy simulated in order to assess the thermal behavior of new construction or refurbished opaque ventilated façades with the new mortar panel. The thermal behavior of the new mortar panels would be studied by means of two energy assessments: (i) the evaluation of the influence of the new mortar panel in the energy demand of the whole building when compared to traditional materials, and (ii) the detailed analysis of the transient inner surface temperature of the space walls when using the new mortar panel. Based on the results obtained from the energy simulations performed, it follows that the thermal behavior of the mortar panel is, at least, equivalent to those of the other two materials, and even better in some aspects.

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“…This green concept can be obtained either by designing the recycling of the material after its useful life [1] or by using industrial waste as its structural components [2,3]. In this way, recycled wastes have awakened a new interest to the development of innovative materials which can alleviate the impact from global warming [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

A Novel Recycling Route for Polyethylene Bottle Caps as Circular Honeycomb Core

Jesus¹,

Oliveira²,

Filho³

et al. 2018

Proceedings of the 4th Brazilian Conference on Composite Materials

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The disposal of plastic wastes in the environment has been an urgent issue due to pollution of the soil and the sea. The incorporation of polymeric residues into innovative and sustainable structural composites can be considered a promising recycling route. This work investigates the use of disposed polyethylene (PE) caps from drinking water bottles as a sustainable honeycomb core with circular cell geometry. A full factorial design was conducted to identify the effect of bottle caps orientation (single and alternated directions), polymeric adhesive (epoxy and polymer), and aluminium roughness (smooth and rough surface) on the mechanical properties of sandwich panels. The use of epoxy polymer contributes significantly to enhance panel strength and stiffness.Smooth aluminium skins lead to increased panel strength, suggesting a limited effect of roughness increase to enhance aluminium and skin bonding. Finally, single directed caps in the core achieve better mechanical performance than alternated caps. The results evidence the feasibility of alternative uses for bottle caps into structural and sustainable applications. 1.

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Wood waste as an alternative thermal insulation for buildings

Cited by 173 publications

References 24 publications

Lightweight, Anisotropic, Compressible, and Thermally-Insulating Wood Aerogels with Aligned Cellulose Fibers

Lightweight, Anisotropic, Compressible, and Thermally-Insulating Wood Aerogels with Aligned Cellulose Fibers

Testing of the Integrated Energy Behavior of Sustainable Improved Mortar Panels with Recycled Additives by Means of Energy Simulation

A Novel Recycling Route for Polyethylene Bottle Caps as Circular Honeycomb Core

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