Performance of the hygrothermal behavior of the CLT wall using different types of insulation; XPS, PF board and glass wool

Yoo, Jiwon; Chang, Seong Jin; Yang, Sungwoong; Wi, Seunghwan; Kim, Young Uk; Kim, Sumin

doi:10.1016/j.csite.2021.100846

Cited by 22 publications

(8 citation statements)

References 20 publications

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“…Table 2 shows the summary results of the thermal conductivity measurements [M] of the material processed and blown into the specimens, where it is observed that the average result is 0.034 ± 0.001 [W/mK]. This result is comparable and in a favorable position with respect to other traditional thermal insulation materials, such as glass wool, expanded polystyrene, and other organic materials, which are around 0.040 [W/mK] [42,43]. The result is comparable with other developments of low-environmental-impact materials.…”

Section: Thermal Conductivitymentioning

confidence: 74%

Valorization of Wheat Crop Waste in Araucanía, Chile: Development of Prototype of Thermal Insulation Material for Blowing Technique and Geographical Analysis

2023

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Houses in the operational stage consume around 40% of the world’s energy, and most of it is consumed by air conditioning. This generates several problems, especially in cities, where biomass combustion is the most widely used form of heating. For this reason, environmental regulation works in parallel with energy efficiency, where efficient and low-impact thermal insulating materials are key to reduce the energy demand and fuel consumption to generate comfort in dwellings. This work considers the valorization of wheat straw from the Araucanía region of Chile, to develop a prototype for a thermal insulating material applied through the blowing technique. The results show the insulation potential of the fiber, which, in post-chopping conditions and at an average density of 80 [kg/m3], has thermal conductivity of 0.034 [W/mK]. This value is much better than that of glass wool and other inorganic materials sold in the Chilean market. In addition, the developed material can be incorporated into partitions using the blowing technique, improving the execution time for the thermal insulation section. Finally, it is indicated that a good option to install a processing plant is in the central valley of the region, specifically in the communes of Victoria and Perquenco.

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Section: Thermal Conductivitymentioning

confidence: 74%

Valorization of Wheat Crop Waste in Araucanía, Chile: Development of Prototype of Thermal Insulation Material for Blowing Technique and Geographical Analysis

2023

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“…The significant influence on a possible spike of the pollutant's concentration can be exerted by such technological process parameters as the dosing accuracy of components and the temperature regime during polymer extrusion. To exclude the temperature excess and prevent the destruction of the polymer, in which hazardous substances are released [9,10], it is necessary to control the humidity, mass, and volume of the polymer mass supplied for processing.…”

Section: Cp12 -Environmental Control Operations (Control Points)mentioning

confidence: 99%

“…Synthetic insulation materials are the most important elements of building structures, as they ensure the energy efficiency of buildings and structures [7]. The use of heat-insulating XPS materials makes it possible to significantly improve and accelerate the construction technology of buildings and structures, as well as significantly reduce the costs of constructing new building structures [8][9][10]. Despite all the advantages of synthetic XPS insulation, there is a problem with its use in sustainable construction.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Compliance of Extrusion Foamed Polystyrene Production with the Environmental Standards Requirements

et al. 2022

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The development of modern construction requires the use of environmentally friendly building materials, including insulating materials, to ensure the energy efficiency of buildings and structures. The purpose of the work is relevant and was to develop a methodology for assessing the compliance of extruded polystyrene foam with environmental requirements. The problem is that the certification of such materials includes an examination of their physical and mechanical properties and does not allow assessment of materials’ environmental aspects. A comprehensive approach to assessing the quality of extruded polystyrene foam is proposed, which ensures not only the technical level of material quality, but also compliance with environmental requirements. The research methodology is based on the environmental risks’ identification at all stages of production and the determination of products environmental safety criteria. Each criterion is characterized by a set of indicators, among which a representative indicator is determined. A complex indicator is proposed for assessing the environmental safety of the production of extruded foamed polystyrene. The novelty of the work lies in the algorithm for calculating the material environmental friendliness complex criterion. The process model of the extruded polystyrene foam production analyses made it possible to establish representative indicators according to the products’ environmental safety criteria. As a result of the analysis, critical operations were identified where environmental risks are likely, and representative indicators’ limit values were set in accordance with regulatory documentation. Measures have been developed to minimize the release of harmful substances during each critical operation. To improve environmental management, the system for monitoring and assessing risks in the production of extruded foamed polystyrene has been optimized. As a result, a methodology has been developed for assessing the compliance of the production of extruded polystyrene foam with environmental requirements, which is necessary for product quality certification. Doi: 10.28991/CEJ-2022-08-10-018 Full Text: PDF

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“…Scholars have conducted some studies on these thermal insulation materials. For example, Yoo et al [4] evaluated the hygrothermal performance of XPS; Guo et al [5] improved some properties of cellulosic aerogels for thermal insulation applications; Lakreb et al [6] studied the thermal conductivity of cork-based insulation panel. Compared with inorganic materials, organic thermal insulation materials have lower thermal conductivity, and they possess the advantages of easy manufacturing, high air permeability, low density, high strength, and impact resistance [7].…”

Section: Introductionmentioning

confidence: 99%

Flexural Experiment and Design Method of Steel-Wire-Enhanced Insulation Panels

Jiang

Zhang

et al. 2023

Buildings

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A new type of non-dismantling composite insulation panel, namely a steel-wire-enhanced insulation panel, was proposed. Compared to traditional organic insulation panels, the construction procedure is reduced, and the fire resistance is improved. The flexural performance was explored experimentally and numerically to evaluate its ability to withstand lateral pressure when it was used as the formwork of a cast-in-place concrete wall. First, 6 groups of 12 specimens of steel-wire-enhanced insulation panels were conducted under 2 loading modes: 3-point bending loading and 4-point bending loading. The failure modes of these specimens included a straight crack at the bottom of the panel and the yielding of steel wire. The test results showed that the maximum bending moment of the specimens with an 80 mm thickness could reach 2.415 kN·m. Second, finite element (FE) models were developed for the steel-wire-enhanced insulation panels by ABAQUS, which were validated by the experimental results. Third, a parametric study with parameters, including the thermal insulation cover, the square gird spacing of the steel wire mesh, and the diameter of the steel wire, was performed. It was observed that the insulation cover had a significant effect on the flexural capacity in the simulated range. Finally, theoretical formulas for panel stiffness and flexural capacity were presented, which can predict the bending performance more conservatively compared to the experimental results. The research and analysis of this study could offer a valuable reference for designing this panel in practical applications.

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Performance of the hygrothermal behavior of the CLT wall using different types of insulation; XPS, PF board and glass wool

Cited by 22 publications

References 20 publications

Valorization of Wheat Crop Waste in Araucanía, Chile: Development of Prototype of Thermal Insulation Material for Blowing Technique and Geographical Analysis

Valorization of Wheat Crop Waste in Araucanía, Chile: Development of Prototype of Thermal Insulation Material for Blowing Technique and Geographical Analysis

Assessing the Compliance of Extrusion Foamed Polystyrene Production with the Environmental Standards Requirements

Flexural Experiment and Design Method of Steel-Wire-Enhanced Insulation Panels

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