Investigating the use of raw perlite to produce monolithic thermal insulation material

Davraz, Metin; Koru, Murat; Akdağ, Ali Ekrem; Kılınçarslan, Şemsettin; Delikanlı, Yunus Emre; Çabuk, Mehmet

doi:10.1016/j.conbuildmat.2020.120674

Cited by 25 publications

(3 citation statements)

References 6 publications

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“…Not only is perlite lightweight and easily poured, but it also does not require any special equipment or skills. This versatile material is mined and processed with minimal impact on the environment, making it a preferred choice for green communities who recognize its high-performance qualities [47,48].…”

Section: Parametric Studymentioning

confidence: 99%

Numerical Evaluation on Thermal Performance of 3D Printed Concrete Walls: The Effects of Lattice Type, Filament Width and Granular Filling Material

Chamatete,

Yalçınkaya

2024

Buildings

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Three-dimensional concrete printing (3DCP) is of great interest to scientists and the construction industry to bring automation to structural engineering applications. However, studies on the thermal performance of three-dimensional printed concrete (3DPC) building envelopes are limited, despite their potential to provide a long-term solution to modern construction challenges. This work is a numerical study to examine the impact of infill geometry on 3DPC lattice envelope thermal performance. Three different lattice structures were modeled to have the same thickness and nearly equal contour lengths, voids, and insulation percentages. Additionally, the effects of filament width and the application of granular insulating materials (expanded polystyrene beads and loose-fill perlite) were also studied. Finally, the efficacy of insulation was established. Results show that void area affects the thermal performance of 3DPC envelopes under stagnant air conditions, while web length, filament width, and contact (intersection) area between the webs and face shells affect the thermal behavior when cavities are filled with insulating materials due to thermal bridging. The thermal efficiency of insulation, which shows the effective use of insulation, varies between 26 and 44%, due to thermal bridges.

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Section: Parametric Studymentioning

confidence: 99%

Numerical Evaluation on Thermal Performance of 3D Printed Concrete Walls: The Effects of Lattice Type, Filament Width and Granular Filling Material

Chamatete,

Yalçınkaya

2024

Buildings

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“…-Perlite is a material obtained as a result of the thermal treatment of volcanic siliceous rock of the rhyolite group at 1000-1200 Taking all of the above into consideration [59][60][61], the substrate to be used will be a mixture of 20% compost from the Faculty of Engineering canteen waste, 30% perlite, 20% vermiculite, 10% sand, and 20% gravel from reclamation. This mixture will be spread around the selected perimeter of the roof to be landscaped by pouring, raking, and lightly compacting.…”

Section: Experimental Site Descriptionmentioning

confidence: 99%

Environmentally Sustainable Green Roof Design for Energy Demand Reduction

et al. 2023

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Green roofs are artificial ecosystems that provide a nature-based solution to environmental problems such as climate change and the urban heat island effect by absorbing solar radiation and helping to alleviate urban environmental, economic, and social problems. Green roofs offer many benefits in terms of heat and water conservation as well as in terms of energy costs. This work proposes the design of an extensive and environmentally sustainable green roof for the Faculty of Engineering building in Bilbao. The green roof will be made from the composting of food waste generated in the building’s own canteen. Therefore, the main objective of this study is to calculate the solar efficiency of a sustainable green roof, evaluate its thermal performance, and quantify the impact that its implementation would have on energy consumption and the thermal comfort of its users. The results obtained confirm that an environmentally sustainable green roof has a positive effect on summer energy consumption and that this effect is much greater when there is water on the roof, as shown by the difference in energy savings between the dry (−53.7%) and wet (−84.2%) scenarios. The data show that in winter the differences between a green roof and a non-vegetated roof are not significant. In this case, the estimated energy consumption penalty (0.015 kWh/m2) would be 10% of the summer gain.

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“…26 Davraz et al investigated the production of monolithic thermal insulation material using coarse and fine raw perlite. 27 This study aimed to improve the thermal insulation property of polyester fabrics with perlite coating. The novelty aspect of this study is that it gives the effect of particle size and concentration on thermal properties in perlite coating comparatively according to two different principles; in addition to this, it is the first time to examine the effect on solar properties.…”

Section: Introductionmentioning

confidence: 99%

Investigation of thermal and solar properties of perlite coated woven fabrics

Manasoglu

Kanık

2021

J of Applied Polymer Sci

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In this study, thermal insulation and solar properties of polyester woven fabrics which were coated with micronized perlite having three different particle sizes (10–38, 50–63, and 100–150 μm) at four different concentrations (20, 40, 60, and 80 g/kg) were investigated. The coating process was performed according to the knife‐over‐roll method. Thermal measurements were carried out with two different principles to evaluate contact and radiant heat transfer according to JIS R 2618 (testing method for thermal conductivity of insulating fire bricks by hot wire) and EN ISO 6942 (protective clothing‐protection against heat and fire‐method of test: evaluation of materials and material assemblies when exposed to a source of radiant heat), respectively. Perlite coating enhanced the thermal insulation property of fabrics. The lowest thermal conductivity coefficient and heat transmission factor (0.088 W/mK and 26.83%) values were obtained at the maximum concentration with the biggest size perlite. With the increasing perlite concentration, solar transmittance values decreased for all particle sizes while solar reflectance values increased.

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Investigating the use of raw perlite to produce monolithic thermal insulation material

Cited by 25 publications

References 6 publications

Numerical Evaluation on Thermal Performance of 3D Printed Concrete Walls: The Effects of Lattice Type, Filament Width and Granular Filling Material

Numerical Evaluation on Thermal Performance of 3D Printed Concrete Walls: The Effects of Lattice Type, Filament Width and Granular Filling Material

Environmentally Sustainable Green Roof Design for Energy Demand Reduction

Investigation of thermal and solar properties of perlite coated woven fabrics

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