Production and Characterization of GRC-SWCNT Composites for Shell Elements

Subaşı, Serkan; Dehghanpour, Heydar; Maraşlı, Muhammed

doi:10.5755/j02.ms.29008

Cited by 1 publication

(2 citation statements)

References 47 publications

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“…On the other hand, since the aim of this study was to design a conductive mortar mix, the SWCNT ratio was kept above the literature, which may decrease the strength by causing low adherence between the filler and the binder in the mixture. Studies [31,46], have reported improvements in the strength of cementitious materials using lower dosages of SWCNT.…”

Section: Mechanical Test Resultsmentioning

confidence: 99%

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Experimental investigation of engineering properties of silica sand filled mortars containing high doses of SWCNT

Doğan

Dehghanpour²,

Subaşı

et al. 2023

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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Recently, great efforts have been made by researchers on the mixture of electrically conductive concretes that have been developed for different purposes. In this study, an experimental research was carried out on electrically conductive mortar mixtures especially for shell elements produced for building facade cladding. Six different mixtures were produced, including the non-conductive reference mixture. Single-walled carbon nanotube (SWCNT) was used as nano-sized conductive additive material. SWCNT was added at 0.2% and 0.3% of cement weight. SF was added to the same mixtures as another group at the rate of 4% by total weight. 2, 14, 28, 90 and 180 days electrical resistivities of the obtained conductive mortar samples were measured. As a non-destructive method, dynamic resonance testing was performed and the 28-day damping rates of the samples were determined. Ultrasonic pulse velocity (UPV) and Leeb hardness tests were performed, respectively, by using other non-destructive testing methods to obtain information about the internal structure voids and surface hardness of the samples. SWCNT, which causes low machinability and therefore internal structure voids, caused a decrease in compressive strength and flexural strength, as well as a significant increase in electrical conductivity.

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Section: Mechanical Test Resultsmentioning

confidence: 99%

“…As a pozzolanic additive material, calcined kaolin was preferred in equal proportions in all mixtures. Previous studies have shown that calcined kaolin performs well when used with white cement [30,31]. The particle size ranges of silica sand, cement and calcined kaolin were compared in Table 1.…”

Section: Materials Propertiesmentioning

confidence: 99%