Department of Chemistry, International Hellenic University, GR-654 04 Kavala, Greece.
Laboratory of Chemical and Environmental Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
Molecules. 2021 Mar 6;26(5):1430. doi: 10.3390/molecules26051430.
This review is an update about the addition of nanomaterials in cementitious composites in order to improve their performance. The most common used nanomaterials for cementitious materials are carbon nanotubes, nanocellulose, nanographene, graphene oxide, nanosilica and nanoTiO. All these nanomaterials can improve the physical, mechanical, thermal and electrical properties of cementitious composites, for example increase their compressive and tensile strength, accelerate hydration, decrease porosity and enhance fire resistance. Cement based materials have a very complex nanostructure consisting of hydration products, crystals, unhydrated cement particles and nanoporosity where traditional reinforcement, which is at the macro and micro scale, is not effective. Nanomaterials can reinforce the nanoscale, which wasn't possible heretofore, enhancing the performance of the cementitious matrix.
这篇综述介绍了在水泥基复合材料中添加纳米材料以提高其性能的最新进展。最常用于水泥基材料的纳米材料有碳纳米管、纳米纤维素、纳米石墨烯、氧化石墨烯、纳米二氧化硅和纳米 TiO2。所有这些纳米材料都可以改善水泥基复合材料的物理、机械、热和电性能，例如提高其抗压和抗拉强度、加速水化、降低孔隙率和提高耐火性。水泥基材料具有非常复杂的纳米结构，由水化产物、晶体、未水化的水泥颗粒和纳米孔隙组成，传统的增强材料（处于宏观和微观尺度）在此处无效。纳米材料可以增强纳米级的性能，这是以前不可能实现的，从而提高水泥基基体的性能。
