项目名称: 地聚合物/水化硅酸钙体系的微结构形成机理与过程调控
项目编号: No.51468009
项目类型: 地区科学基金项目
立项/批准年度: 2015
项目学科: 建筑环境与结构工程学科
项目作者: 马骁
作者单位: 桂林电子科技大学
项目金额: 48万元
中文摘要: 铝硅酸盐矿物材料具有巨大的潜在应用价值,将其与少量水泥复合后,经性能优化而形成的以地聚合物及水化硅酸钙为主要成分的新型低碳环保胶凝材料,有望取代现有硅酸盐水泥。本项目基于铝硅酸盐矿物材料在水泥浆中的碱激活特性,从地聚合物与水化硅酸钙微结构的形成机理着手,探索该材料微结构的优化与过程调控。拟采用微观结构分析与宏观性能表征相结合的方法,建立复合胶凝材料体系组成、结构与力学性能之间关系的定量描述,发展与研究复合胶凝材料体系微结构对力学性能影响的调控方法,调控材料的组成和结构。通过深入探讨复合胶凝材料体系微结构形成对宏观力学性能的影响规律,揭示其形成微结构的内在机理和探索其对宏观力学性能的过程控制原理。这不仅对改造现有硅酸盐水泥体系至关重要,而且可为进一步深入研究低碳环保胶凝材料提供理论基础,对低碳环保复合胶凝材料体系的研究与发展具有重要的指导作用与理论意义。
中文关键词: 水泥基复合材料;微结构;力学性能
英文摘要: Aluminum silicate materials have great potential value of application, the new type low-carbon green binder composed of aluminum silicate materials and a small amount of cement and as the main component of geopolymer and C-S-H, formed by performance optimization, is a viable alternative to Portland cement. This project based on the alkali activation of aluminum silicate materials in cement paste begin with formation mechanism of the micro-structure of the material and explore the optimization and control of the micro-structure of the materials. The quantitative description of relationship among compose, structure and mechanical property of composite binder will be established by combined the micro-structure analysis with the macro performance test. Controlling the effect of structure to mechanical property will be developed. The formation mechanism of the effect of structure to mechanical property will be revealed by the intensive study of influence rule of structure and mechanical property. It is not only important to optimize Portland cement, but also has significance to the research of low-carbon green binder.
英文关键词: cement matrix composites;micro-structure;mechanical property