Influence of CNTs functionalization on the mechanical and electrical properties of cement-based composites

Nanotechnology has changed and will continue to change our vision, expectations and abilities to control the material world. These developments are going to play a massive role in the field of construction and construction materials. Carbon nanotubes (CNTs) are considered to be one of the most beneficial nano-reinforcement materials. The combination of high aspect ratio, small size, low density, and unique physical and chemical properties make them perfect candidates as reinforcements in multifunctional and smart cement-based materials. In the construction sector, attention and exploration in the field of carbon-based materials have been ongoing for many years. Although carbon fibers have already been applied to cementitious composites, carbon nanotubes (CNTs), as nanomaterials, have received widespread attention as a result of their unique multifunctional properties within the context of engineered materials, regarding both the mechanical and electrical properties of the composites. The main task of the present work is to evaluate and comprehend the changes in mechanical and electrical properties of several CNTcement-based composite containing 0,1% by weight of cement of carbon nanotubes, in which the CNTs are modified with a functionalization process for grafting oxygenated functional groups on their surfaces.