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Affordable Phase Change Materials in Lightweight Concrete Walls for Superior Hygrothermal Performance
Lightweight concrete is a popular construction material for its numerous benefits, including reduced weight, improved thermal insulation, and enhanced fire resistance. It can combine with functional additives to regulate moisture properties and improve indoor air quality, making it an ideal choice for walls and roofs. This versatile material not only enhances structural performance but also contributes to better indoor comfort. On the other hand, phase change materials (PCMs) have emerged as an effective solution for reducing energy consumption. However, moisture-related issues, such as condensation and mold growth, remain a concern. Therefore, a comprehensive understanding of the hygrothermal behavior of building materials is essential to mitigate moisture-related risks. This study investigates the potential of glycerin, an affordable PCM, to enhance the hygrothermal performance of lightweight concrete walls. Despite lightweight concrete providing advantageous properties such as low density, high thermal insulation, and sound absorption, they are prone to two significant issues: shrinkage due to gradual water loss and high-water absorption because of their intrinsic porosity. Addressing these challenges, this study explored the application of glycerin as a PCM coating to mitigate the identified drawbacks. The obtained results indicate that a 2 mm layer of glycerin, which was proportionally adjusted to the size of the test specimens in this study, can significantly improve the performance of lightweight concrete. The findings underscore the effectiveness of combining lightweight concrete with an affordable and available PCM choice, presenting a promising energy conservation and sustainable building design solution by minimizing energy consumption and allowing for thinner wall construction.
Affordable Phase Change Materials in Lightweight Concrete Walls for Superior Hygrothermal Performance
Lightweight concrete is a popular construction material for its numerous benefits, including reduced weight, improved thermal insulation, and enhanced fire resistance. It can combine with functional additives to regulate moisture properties and improve indoor air quality, making it an ideal choice for walls and roofs. This versatile material not only enhances structural performance but also contributes to better indoor comfort. On the other hand, phase change materials (PCMs) have emerged as an effective solution for reducing energy consumption. However, moisture-related issues, such as condensation and mold growth, remain a concern. Therefore, a comprehensive understanding of the hygrothermal behavior of building materials is essential to mitigate moisture-related risks. This study investigates the potential of glycerin, an affordable PCM, to enhance the hygrothermal performance of lightweight concrete walls. Despite lightweight concrete providing advantageous properties such as low density, high thermal insulation, and sound absorption, they are prone to two significant issues: shrinkage due to gradual water loss and high-water absorption because of their intrinsic porosity. Addressing these challenges, this study explored the application of glycerin as a PCM coating to mitigate the identified drawbacks. The obtained results indicate that a 2 mm layer of glycerin, which was proportionally adjusted to the size of the test specimens in this study, can significantly improve the performance of lightweight concrete. The findings underscore the effectiveness of combining lightweight concrete with an affordable and available PCM choice, presenting a promising energy conservation and sustainable building design solution by minimizing energy consumption and allowing for thinner wall construction.
Affordable Phase Change Materials in Lightweight Concrete Walls for Superior Hygrothermal Performance
Lecture Notes in Civil Engineering
Kioumarsi, Mahdi (editor) / Shafei, Behrouz (editor) / Nia, Saeed B. (author) / Pepera, Raymond (author) / Shafei, Behrouz (author)
The International Conference on Net-Zero Civil Infrastructures: Innovations in Materials, Structures, and Management Practices (NTZR) ; 2024 ; Oslo, Norway
The 1st International Conference on Net-Zero Built Environment ; Chapter: 35 ; 415-424
2025-01-09
10 pages
Article/Chapter (Book)
Electronic Resource
English
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