This paper presents a state-of-the-art review of the utilization of nanomaterials in ultra-high-performance concrete (UHPC). First, various types of nanomaterials currently available for use in UHPC are summarized and their geometric and physical properties are analyzed. Then, the effects of nanomaterials on the packing density and fresh properties of UHPC are addressed. The hydration kinetics and mechanical properties of UHPC, such as the interfacial bonding, compressive strength, tensile and flexural responses, and nano-mechanical properties, are analyzed according to the nanomaterial type and dosage. Based on the data acquisition and analysis, the optimal dosages of nanomaterials for strength enhancements of UHPC are suggested. The influence of nanomaterials on the durability-related properties, such as the porosity, water sorptivity and permeability, sulfate attack, abrasion resistance, corrosion resistance, freeze–thaw resistance, fatigue performance, and shrinkage, are also investigated. Finally, nanomaterial-based functional UHPCs with electrical, self-sensing, and electromagnetic shielding properties are reviewed and discussed.

本文介绍了纳米材料在超高性能混凝土 (UHPC) 中的利用的最新进展。首先，总结了目前可用于 UHPC 的各种类型的纳米材料，并分析了它们的几何和物理性质。然后，讨论了纳米材料对 UHPC 的堆积密度和新鲜特性的影响。根据纳米材料类型分析了UHPC的水化动力学和力学性能，如界面结合、抗压强度、拉伸和弯曲响应以及纳米力学性能和剂量。基于数据采集和分析，提出了用于增强 UHPC 强度的纳米材料的最佳用量。还研究了纳米材料对耐久性相关性能的影响，例如孔隙率、吸水性和渗透性、硫酸盐侵蚀、耐磨性、耐腐蚀性、抗冻融性、疲劳性能和收缩率。最后，回顾和讨论了具有电学、自传感和电磁屏蔽特性的基于纳米材料的功能 UHPC