Title
Flowability and electrical properties of cement composites with mechanical dispersion of carbon nanotube,
Author
Million Tafesse, Nam Kon Lee, Abel Shiferaw Alemu, Hyo Kyoung Lee, Sung Wook Kim, Hyeong-Ki Kim,
Year
2021
Journal
Construction and Building Materials,
Abstract
The present study aims to understand the relationship between flowability and electrical properties of cement composites with mechanical dispersion of carbon nanotube (CNT) and to establish a guideline of mix proportioning for the CNT/cement composites with suitable workability and high electrical conductivity. In this study, mixtures composed of different mix proportions and CNT types were designed, and their flow diameter, electrical resistivity, basic mechanical properties in terms of strength and elastic modulus, and microscopic morphology were measured and evaluated. Intuitive and simple modeling was performed to quantitatively assess the effect of CNT dispersibility on conductivity. The results indicated that the flowability and resistivity of cement composites were significantly affected by the dispersibility of CNTs.
Instrument
NRS-5100
Keywords
Carbon nanotube (CNT); Cement composite; Flowability; Electrical resistance; Dispersion; Modeling