Abstract
The potential use of carbon nanotubes, SiO2, TiO2, Fe2O3, CuO, ZrO2, ZnO2, Al2O3, CaCO3, Cr2O3 and Ag nanoparticles in the civil engineering has been explored in this article. Most of the studies showed that addition of nanomaterials in appropriate quantity improved the strength and durability properties but decreased setting time as well as workability of cementitious composites. The other challenges include high cost, environmental and health risks associated with nanomaterials. That is why the comprehensive recommendations for the utilization of nanomaterials in day-to-day construction practice are still awaited. Also, a study to evaluate the corrosion behaviour of graphene and nano-TiO2-incorporated steel-reinforced cementitious composite has been undertaken. The nanoadmixed composite showed lower corrosion rate compared to uninhibited specimens at early ages. However, more results are required involving fairly longer period of time to establish graphene and nano-TiO2 as corrosion inhibitors.