A Review of Nanotechnology Applications in Sustainable Cementitious Materials

Abstract

The application of nanotechnology in the construction industry can solve numerous environmental issues by effectively utilizing large quantities of waste materials generated during construction. Applying nanotechnology in the cement concrete industry has led to numerous benefits. The adoption of nanotechnology in cement mortar and concrete results in significant improvements in properties such as workability, compressive, flexural, and tensile strengths, as well as water absorption, chloride ion permeability, and shrinkage. Hence, the utilization of nanotechnology can enhance environmental sustainability in construction materials by incorporating significant amounts of waste materials as supplementary cementitious materials. This practice not only reduces the emissions of carbon dioxide (CO₂) resulting from the accumulation of waste in landfills but also reduces cement production. By advocating for the integration of nano-waste materials in significant volumes within construction materials, this research underscores the pathway towards sustainable construction practices. Such endeavors align with the broader objective of contributing to the attainment of the sustainable development Goals (SDGs), particularly in protecting the environment and combating climate change.