Shafigh, Payam and Hafez, Mohamed Ahmed and Muda, Zakaria Che and Beddu, Salmia and Zakaria, As'ad and Almkahal, Zaher (2022) Influence of different ambient temperatures on the thermal properties of fiber-reinforced structural lightweight aggregate concrete. Buildings, 12 (6). ISSN 2075-5309, DOI https://doi.org/10.3390/buildings12060771.
Full text not available from this repository.Abstract
This study reports the influence of different climatic ambient temperatures on the thermal properties of fiber-reinforced lightweight aggregate concrete (LWAC). Lightweight expanded clay aggregates (LECA) with steel (ST) and polypropylene fibers were used in the mix proportions. The steady-state thermal test was performed on concrete samples at the oven-dry state with the measurement taken at six different climatic ambient temperatures of 0 degrees C, 10 degrees C, 20 degrees C, 30 degrees C, 40 degrees C, and 50 degrees C. The results show a linear dependence of thermal conductivity, specific heat, thermal diffusivity and thermal effusivity of fiber-reinforced LWACs against the different ambient temperatures. These ambient temperature variations are discussed as a function of the thermal properties of fiber-reinforced LWAC. The thermal conductivity and thermal diffusivity decrease linearly between 0 degrees C and 50 degrees C, whilst the specific heat and thermal effusivity increase linearly between 0 degrees C and 50 degrees C. Equations with strong correlations to predict thermal properties of fiber-reinforced LWAC were proposed based on the results of this study. The significance of this research is to propose the dynamic ambient temperature-dependent thermal properties equations that can be used in the energy analysis of the buildings.
| Item Type: | Article |
|---|---|
| Funders: | None |
| Uncontrolled Keywords: | Fiber-reinforced concrete; Lightweight aggregate concrete; Steel fiber; Polypropylene fiber; Temperature-dependent thermal properties; Thermal conductivity; Specific heat; Thermal diffusivity; Thermal effusivity |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of the Built Environment > Department of Architecture |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 19 Nov 2023 14:19 |
| Last Modified: | 03 Dec 2023 01:59 |
| URI: | http://eprints.um.edu.my/id/eprint/41967 |
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