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Article

The Effect of Lightweight Concrete Cores on the Thermal Performance of Vacuum Insulation Panels

1
Department of Civil and Environmental Engineering, Sejong University, Seoul 05006, Korea
2
Building Materials and Construction Chemistry, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
3
Faculty of Civil Engineering and Architecture, West Pomeranian University of Technology Szczecin, Al. Piastow 50, 70-311 Szczecin, Poland
4
Structural Engineering Department, Mansoura University, Elgomhouria St., Mansoura City 35516, Egypt
*
Author to whom correspondence should be addressed.
Materials 2020, 13(11), 2632; https://doi.org/10.3390/ma13112632
Received: 6 May 2020 / Revised: 29 May 2020 / Accepted: 4 June 2020 / Published: 9 June 2020
(This article belongs to the Special Issue Research of Mechanical Behavior of Cement and Concrete Composites)
The performance of vacuum insulation panels (VIPs) is strongly affected by several factors, such as panel thickness, design, quality of vacuum, and material type. In particular, the core materials inside VIPs significantly influence their overall performance. Despite their superior insulation performance, VIPs are limited in their widespread use as structural materials, because of their low material strength and the relatively expensive core materials. As an alternative core material that can compensate these limitations, foamed concrete, a type of lightweight concrete with very low density, can be used. In this study, two different types of foamed concrete were used as VIP core materials, with their effects on the thermal behavior of the VIPs having been evaluated using experimental and numerical methods. To confirm and generate numerical models for VIP analysis, micro-computed tomography (micro-CT) was utilized. The obtained results show that insulation effects increase effectively when panels with lightweight concrete are in a vacuum, and both foamed concrete types can be effectively used as VIP core materials. View Full-Text
Keywords: lightweight concrete; foam concrete; vacuum insulation panel (VIP); micro-CT; thermal properties lightweight concrete; foam concrete; vacuum insulation panel (VIP); micro-CT; thermal properties
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MDPI and ACS Style

Chung, S.-Y.; Sikora, P.; Stephan, D.; Abd Elrahman, M. The Effect of Lightweight Concrete Cores on the Thermal Performance of Vacuum Insulation Panels. Materials 2020, 13, 2632. https://doi.org/10.3390/ma13112632

AMA Style

Chung S-Y, Sikora P, Stephan D, Abd Elrahman M. The Effect of Lightweight Concrete Cores on the Thermal Performance of Vacuum Insulation Panels. Materials. 2020; 13(11):2632. https://doi.org/10.3390/ma13112632

Chicago/Turabian Style

Chung, Sang-Yeop, Pawel Sikora, Dietmar Stephan, and Mohamed Abd Elrahman. 2020. "The Effect of Lightweight Concrete Cores on the Thermal Performance of Vacuum Insulation Panels" Materials 13, no. 11: 2632. https://doi.org/10.3390/ma13112632

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