中文摘要：

研究了不同养护制度对超高性能纤维增强水泥基复合材料（UHPFRCC）微观结构和宏观性能的影响，并揭示了用不同的养护制度制备性能符合要求的超高性能纤维增强水泥基复合材料的可能性．制备了一种基准的UHPFRCC，研究了3种养护制度下UHPFRCC的力学性能及短期耐久性能．此外，通过结合运用电子扫描电镜（SEM）和压汞法（MIP），测试了3种养护制度下UHPFRCC的微观结果．研究结果揭示了不同的养护制度对UHPFRCC微观结构的影响以及微观结构对材料宏观性能的影响机制．热养护和蒸汽养护3d与标准养护90d的UHPFRCC具有相近的力学性能和耐久性．但是，热养护的UHPFRCC具有相对较差的抗氯离子渗透性能．

英文摘要：

This study investigates the influence of different curing regimes on the microstructure and macro properties of ultra-high performance fiber reinforced cementitious composite （UHPFRCC）, and aims to discover whether it is possible to produce qualified UHPFRCC using different curing regimes. A control mix of UHPFRCC is prepared. The mechanical performance and the short-term durability of the UHPFRCC matrix under three curing regimes are studied. In addition, the microstructures of the UHPFRCC matrix with different curing conditions are analyzed by combining scanning electron microscopy （SEM） and mercury intrusion porosimetry （MIP）. The results explore how different UHPFRCC curing regimes affect its microstructure and how the microstructure affects its macro behavior. Heat and steam curing for 3 d is succeeded to produce the UHPFRCC with nearly the same mechanical properties and durability as those of the 90 d standard curing. However, the heat cured UHPFRCC does not show great resistance to chloride-ion penetration.