This article presents a technical review on the use of carbon nanotubes in cementitious mixtures, highlighting their potential to reduce the carbon footprint without compromising structural performance. The research is relevant in light of the need to build more sustainable infrastructure through the use of nanotechnological additives. The objective was to critically analyze experimental and theoretical advances linking the incorporation of nanotubes with improvements in mechanical, functional, and environmental properties. A qualitative methodology was applied, including systematic searches in scientific databases, rigorous study selection, technical data extraction, and inductive thematic analysis. The findings show that nanotubes enhance compressive strength, improve durability under thermal conditions, and reduce capillary absorption; furthermore, they enable the development of smart materials with capabilities such as self-healing and structural monitoring. From an environmental standpoint, they support clinker and CO₂ emission reductions of up to 20 %, especially when combined with industrial by-products. It is concluded that carbon nanotubes represent a feasible and high-value-added solution to advance toward more efficient, durable, and environmentally responsible construction.
Alvansazyazdi et al. (Wed,) studied this question.