CSH凝胶是决定水泥混凝土力学性能、体积变形及耐久性的最重要组份。然而，人们对CSH凝胶的真实结构仍无定论，一直是研究热点和难点。理解CSH凝胶的结构，并实现人为地对其结构和性能进行调控，对理解和提升混凝土材料性能，有极其重要的理论和工程价值。本项目面向CSH凝胶材料结构和性能这一共性研究热点问题，通过与高分子科学交叉融通，基于仿生学思想，将有机小分子、高分子及聚合物纳米粒子从分子、纳观尺度上引入到CSH结构中，采用先进的材料表征手段，研究有机-无机分子相互作用，为进一步揭示CSH结构提供新依据，为提升CSH材料性能提出新理论。以期实现对CSH凝胶材料的力学增韧、干缩和徐变调控、以及CSH表面由亲水向憎水切换等性能调控。本项目借鉴高分子科学中的成熟理论如玻璃化转变、熵弹性理论等，应用到对CSH的研究中来，属有机高分子材料与无机材料、物理化学等多学科的交叉领域，研究成果将具有重大的科学原创性

Calcium-Silicate-Hydrate (CSH) is the most important phase in concrete, determining the mechanical properties, dimensional stability and durability of concrete. However, as the largest used solid materials, the true microstructure of CSH remains under debate and has been being the research focus for decades. Understanding the microstructure of CSH materials and positively regulating the microstructure and properties of CSH materials are of great scientific and engineering importance in cement and concrete fields. This project is aiming to introduce organic species including small organic molecules, polymers and polymer nano-particles into CSH gel structures and to reveal the interaction between the organic species and the CSH skeleton. By adopting the bionic concepts and the theories in polymer science such as glass transition theory, rubber entropic elasticity theory, it is expected to provide new experimental evidences for the microstructure of CSH and to lay fundamental basis for modification of CSH properties. New technical approaches for toughening, hydrophobizing, shrinkage and creep reducing of CSH materials are to be delivered. The scope of this project belongs to a cross-disciplinary field involving inorganic materials, polymer science and physical chemistry etc. and new theoretical breakthrough for CSH science is expected from this project.