Durable Nano-Engineered Cementitious Systems

耐久性问题困扰着水泥系统：这种困扰可能来自物理原因-收缩和热开裂-或来自化学环境。传统建筑材料和现代系统同样容易受到影响，确保其寿命严重涉及混凝土技术人员。混凝土的性能与混凝土的微观结构密切相关，包括孔隙网络、水化产物的稳定性以及体系中各界面的粘结性。在大多数情况下，研究主要集中在宏观工程的性质，即。治标不治本！然而，构建块是在纳米尺度上，这保证了一致的重点是定制这种系统的物理和化学性质，以适应每种应用。

Durability issues plague cementitious systems: The distress could arise either from physical causes -shrinkage and thermal cracking- or from the chemical environment . Both traditional building materials and modern systems are equally susceptible and ensuring their longevity seriously engages concrete technologists. Performance is related intimately to the microstructure: air-void network, stability of hydration products and the bond at various interfaces in the system. For the most part, research has focused largely at macro-engineering of properties, ie. treating the symptom but not the cause! However, the building block is at the nanometric scale, which warrants a concerted focus on tailoring the physical and chemical properties of such systems to suit each application.