Research on the mechanical properties and durability of nanomaterial modified concrete
纳米材料改性混凝土的力学性能与耐久性研究

摘要

纳米材料作为一种新型功能材料，广泛应用于混凝土改性以提升其力学性能和耐久性。本文系统研究了纳米材料对混凝土微观结构的影响机制，分析了不同纳米材料掺入对混凝土抗压强度、抗折强度及耐久性能的改善效果。通过实验和理论相结合的方法，揭示了纳米粒子在混凝土中的分散状态及其增强机理，进而提出优化混凝土配比的技术路径。纳米材料能有效提高混凝土的致密性和抗化学侵蚀能力，显著延长结构的使用寿命，为混凝土材料的高性能设计提供了理论依据和实践指导。

Abstract

Nanomaterials, as a new type of functional material, are widely used in concrete modification to enhance its mechanical properties and durability. This article systematically studies the influence mechanism of nanomaterials on the microstructure of concrete, and analyzes the improvement effect of different nanomaterials on the compressive strength, flexural strength, and durability performance of concrete. By combining experimental and theoretical methods, the dispersion state and reinforcement mechanism of nanoparticles in concrete were revealed, and a technical path for optimizing the concrete mix ratio was proposed. Nanomaterials can effectively improve the density and chemical resistance of concrete, significantly prolong the service life of structures, and provide theoretical basis and practical guidance for the high-performance design of concrete materials.