Properties and Durability of Cementitious Composites Incorporating Solid-Solid Phase Change Materials
| Autor: | Yosra Rmili, Khadim Ndiaye, Lionel Plancher, Zine El Abidine Tahar, Annelise Cousture, Yannick Melinge |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Applied Sciences, Vol 14, Iss 5, p 2040 (2024) |
| Druh dokumentu: | article |
| ISSN: | 14052040 2076-3417 |
| DOI: | 10.3390/app14052040 |
| Popis: | This paper investigates the properties and durability of cementitious composites incorporating solid-solid phase change materials (SS-PCM), an innovative heat storage material. Mortars with varying SS-PCM contents (0%, 5%, 10%, 15%) were formulated and characterized for rheological, structural, mechanical, and thermal properties. Durability assessment focused on volume stability (shrinkage), chemical stability (carbonation), and mechanical stability (over thermal cycles). Mortars with SS-PCM exhibited significant porosity and decreased mechanical strength with higher SS-PCM content. However, thermal insulation capacity increased proportionally. Notably, the material’s shrinkage resistance rose with SS-PCM content, mitigating cracking issues. Despite faster carbonation kinetics in SS-PCM mortars, attributed to high porosity, carbonation appeared to enhance long-term mechanical performance by increasing compressive strength. Additionally, SS-PCM composites demonstrated superior stability over thermal cycles compared to reference mortars. |
| Databáze: | Directory of Open Access Journals |
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