Study on the Mechanical Properties of Cement-Based Materials Enhanced by Carbon Nanotubes

碳纳米管(CNTs)因其独特的结构特性和卓越的力学、电学及热学性能，在材料科学领域受到了广泛关注，将碳纳米管添加到水泥基材料中，可以显著提升这些材料的抗压强度、抗折强度和耐久性。该篇综述旨在综合评述碳纳米管在增强水泥基材料力学性能方面的研究进展，包括关键发现和创新成果。同时，探讨了碳纳米管在水泥基材料中的分散性问题，及其对材料力学性能的影响，以及国内外在该领域的研究现状。鉴于碳纳米管在水泥基体中的有效分散仍是一个挑战，还分析了多尺度的重要性、新型分散技术的开发以及复合掺合物的研究，并预测未来的研究方向将聚焦于提升碳纳米管的生产工艺、功能化研究、耐久性研究以及创新应用的探索。这些研究有望使碳纳米管在提升水泥基材料力学性能方面发挥更加重要的作用，进而推动建筑材料科学的进步与发展。Carbon nanotubes (CNTs) have attracted extensive attention in the field of materials science due to their unique structural properties and excellent mechanical, electrical and thermal properties, and the addition of carbon nanotubes to cement-based materials can significantly improve the compressive strength, flexural strength and durability of these materials. The purpose of this review is to comprehensively review the research progress of carbon nanotubes in enhancing the mechanical properties of cement-based materials, including key findings and innovations. At the same time, the dispersion of carbon nanotubes in cement-based materials, their influence on the mechanical properties of materials, and the research status in this field at home and abroad are discussed. In view of the fact that the effective dispersion of carbon nanotubes in cement matrices is still a challenge, the importance of multi-scale, the development of new dispersion technologies and the research of composite admixtures are analyzed, and it is predicted that the future research direction will focus on improving the production process of carbon nanotubes, functionalization research, durability research and exploration of innovative applications. These studies are expected to make carbon nanotubes play a more important role in improving the mechanical properties of cement-based materials, and then promote the progress and development of building materials science.