Advanced Cement Matrix Materials

该项目致力于开发先进的胶凝材料。水泥和水泥基复合材料性能大幅改善的机会主要是由于最近对致密水泥基体材料、“MDF”水泥、矿渣和硅灰水泥的研究。再加上我们对脆性基复合材料理论的理解迅速增加，这种新的相化学控制和加工为性能的新数量级增加提供了非常大的希望。这种大幅改进的水泥基体材料的应用范围从特殊耐用混凝土延伸到特殊材料，如机床和成型材料，到低介电常数基材或压敏电阻。本项目包括以下主要组成部分：通过控制其相组成来增强基体；引入新的制备和加工方法来制造水泥基复合材料；研究完全未开发的自转变增韧水泥o对上述材料进行详细的表征和性能研究。后期的研究将包括颗粒纳米复合材料和纤维增强材料领域。

This project addresses the development of advanced cementitious materials. The opportunity for substantial improvement of the properties of cement and cement-based composites has been given a major boost by recent research in densified cement matrix materials, 'MDF' cement, and slag and silica-fume cements. Taken together with the rapid increase in our understanding of the theory of brittle matrix composites, this new control of phase chemistry and processing offers very substantial hope of new-order of magnitude increases in properties. Applications for such substantially improved cement matrix materials extend from special durable concretes to specialized materials such as machine tool and molding materials, to substrates of low dielectric constant, or varistors. This project includes these major components: o Enhancement of the matrix by manipulation of its phase composition o Introduction of novel preparation and processing approaches to making cement-based composites o The study of totally unexplored self transformation- toughened cements o Detailed characterization and properties investigations of the above materials. Later stage studies will include regions of particulate nanocomposites and fiber reinforced materials.