PREPARATION AND DYNAMIC PROPERTIES OF FUNCTIONALLY GRADED CEMENTITIOUS COMPOSITE SUBJECTED TO IMPACT

摘要：

　　The functionally graded cementitious composite (FGCC) was prepared by stacking different ultra high performance fiber reinforced concretes (UHPFRC) layers together.The different layers of FGCC were made of ultra high performance hybrid fiber reinforced concrete, ultra high performance steel fiber reinforced concrete and ultra high performance coarse aggregate concrete respectively.The dynamic properties of FGCC targets subjected to projectile penetration were investigated.The fracture patterns were observed for different FGCC targets.The penetration depth, crater size and damage area of different targets were measured.Results show that the penetration depth, crater diameter and damage area were decreased by the reinforcement of high strength fibers and coarse aggregates.The cracking, penetration and spalling of FGCC targets were reduced by the synergistic effects of the different UHPFRC layers.

关键词： Functionally graded cementitious composite UHPFRC Penetration

作者: Jianzhong Lai Xiaobo Zheng Haoruo Yang Huifang Wang Qiang Wang

作者单位: School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

会议类型: 国际会议

会议名称: The 2nd International Conference on UHPC Materials and Structures, UHPC2018-China(第二届超高性能混凝土材料和结构国际会议)

会议地点: 福州

会议语种:英文

页码: 394-402

在线出版日期: 2018-11-07（万方平台首次上网日期，不代表论文的发表时间）