Characterization of carbon fiber reinforced conductive mortars filled with recycled ferrochrome slag aggregates
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Dosyalar
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Recently, it has been known that carbon fiber, a conductive fiber, is used in different mix- ture designs and the development of electrically conductive cementitious materials. Howev- er, the evaluation of ferrochrome slag as a recycled aggregate in the mixture of these special concretes has still not been investigated. In this study, electrically conductive mortars were produced using 100% recycled ferrochrome slag aggregate with a particle size of less than 1 mm as filling material and using carbon fiber in 4 different ratios, 0%, 0.5%, 0.75%, and 1%. To investigate the electrical conductivity properties, the resistivity values of the samples were measured at five different times within 2–180 days. In addition, 28-day compressive strength, flexural strength, dynamic resonance, ultrasonic pulse velocity, Leeb hardness, scanning elec- tron microscope, and X-Ray Diffraction tests were performed on all samples. The results were compared with the literature, proving that ferrochrome slag could be used as a reasonable aggregate in conductive mortars. The age effect was minimal in CF-added mixtures. With the addition of 1% CF, the resistivity values decreased approximately 40 times compared to the ref- erence. Moreover, SEM analyses of the CF-0.75 sample showed that the CFs adhered to form a conductive network between the components in the ferrochrome-filled compact structure.
Açıklama
Anahtar Kelimeler
Ferrochrome aggregate, mortar, carbon fiber, conductivity, dynamic resonance
Kaynak
Journal of sustainable construction materials and technologies (Online)
WoS Q Değeri
Scopus Q Değeri
Cilt
7
Sayı
3
