Investigation of mechanical and electrical properties of ultra-low rate SWCNT added UHPC
Yükleniyor...
Dosyalar
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Gazi Univ, Fac Engineering Architecture
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
With the development of nanotechnology, the use of nano materials with specific features in the construction industry, especially in the field of building materials, attracts attention by many researchers. According to the literature, carbon nanotubes (CNTs) are among the highly usable nanomaterials in the mixtures of cementitious materials. Although there are many studies on multi-walled carbon nanotube (MWCNT) added concretes, there are limited studies investigating the behavior of single-walled carbon nanotubes (SWCNTs) on concrete. In the present study, the mechanical and electrical properties of ultra-high performance concretes (UHPCs) produced by using SWCNT at the ratios of 0.0125, 0.020 and 0.025 % of cement weight were investigated. By adding 4.2 % steel fiber to the same mixtures, a total of 8 mixes with the reference were obtained. Conductivity and bending tests were carried out on 12X3X2 cm specimens. For electrical resistance measurement, the two-point uniaxial method, which is common in measuring cementitious materials, was used. According to the results, positive effects of SWCNT on mechanical properties have been observed. With the addition of SWCNT and increasing its ratio, the electrical resistance decreased, but it was found that high rates of SWCNT were required to increase the current rate. In addition, the effect of SWCNT was more pronounced in steel fiber added mixtures.
Açıklama
Anahtar Kelimeler
Uhpc; Composite; Carbon Nanotube; Swcnt; Electrical Resistance, Walled Carbon Nanotubes; Fracture-Toughness; Cement; Composites; Concrete; Behavior; Conductivity; Fibers
Kaynak
Journal of The Faculty of Engineering and Architecture of Gazi University
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
38
Sayı
1
