ABC algorithm-based optimization and evaluation of nano carbon black added multi-layer microwave absorbing ultra weight foam concrete
Yükleniyor...
Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Ltd.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This research presents a study on the nano-carbon black (NCB) added ultra-weight foam concrete by revealing its potential utilization of multi-layer microwave absorbing foam concrete (MMAFC). The fresh and hardened properties of the foam concrete samples were investigated. Four concrete samples were constituted by adding NCB with 0%, 5%, 10% and 15%. They were microwave characterized so as to achieve complex permittivity and permeability values at the range of 8.2–12.4 GHz. An ABC algorithm-based optimization was also conducted to design four MMAFC with number of layer (NL)= 1, 2, 3 and 4. The results showed that dry density of foam concrete samples varied between 167 and 218 kg /m3, the thermal conductivity between 0.067 and 0.092 W / (m K), indicating better performances compared to the conventional foam concretes within the range of ultra-weight classification. The 4-layer MMAFC with 34.74 mm total thickness excessively satisfies the minimum requirement of 90% absorption (−10 dB reflection coefficient). Therefore, the proposed optimal MMAFC can be used in building for microwave absorbing and shielding.
Açıklama
WOS:000878266900002
Anahtar Kelimeler
ABC Algorithm, Absorbance, Foam, Foam Concrete
Kaynak
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
32
Sayı
Künye
Yildizel, S. A., & Toktas, A. (2022). ABC algorithm-based optimization and evaluation of nano carbon black added multi-layer microwave absorbing ultra weight foam concrete. Materials Today Communications, 32 doi:10.1016/j.mtcomm.2022.104035
