Title:
Newly Synthesized Nanotube Hybrids for Sustainable and Multifunctional Coal Ash Based Concrete
Author(s):
Maglogianni
Publication:
Web Session
Volume:
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/23/2022
Abstract:
Carbon nanotube hybrids/coal ash-based concrete was prepared showing unmatched mechanical/fracture properties and sensing functionalities. The newly synthesized nanotube hybrid suspensions, prepared using ultrasonication, were found to exhibit excellent dispersibility and long-term stability for a period over 90 days. The chemical structure and functional groups of the dispersed nanotube hybrids were evaluated by FTIR and Raman Spectroscopy. A considerably increased (around 65%) electrical conductivity was observed, as compared to the plain coal ash concrete, which coupled with the enhanced modulus and toughness led to a superior electromechanical response, essential for strain sensing and progressive failure monitoring.