中空玻璃微珠对超高性能混凝土的阻抗提升研究  

Research on Impedance Enhancement of Ultra-High Performance Concrete by Hollow Glass Microspheres

作　　者：朱铁梅 张莲 杜亚辰 王一豪 

机构地区：[1]无锡地铁建设有限责任公司,江苏 无锡

出　　处：《土木工程》2024年第3期238-249,共12页Hans Journal of Civil Engineering

摘　　要：在地铁轨道等地下结构中,为预防跨步电压造成的安全隐患问题,采用中空玻璃微珠制备了高阻抗UHPC。结果表明:中空玻璃微珠能够形成新的基体–玻璃外壳界面,降低基体的电导率。掺入15%的中空玻璃微珠后,UHPC的电阻率达到了14.39 kΩ∙m,较对照组提高了101.72%。In order to prevent the safety hazard problem caused by step voltage in subway structures such as subway tracks, high-impedance UHPC was prepared by using hollow glass microspheres. The results show that hollow glass microspheres can form a new substrate-glass shell interface and reduce the conductivity of the substrate. The resistivity of UHPC reached 14.39 kΩ∙m after 15% of hollow glass microspheres were doped, which was 101.72% higher than that of the control.

关 键 词：超高性能混凝土 中空玻璃微珠 交流阻抗谱 等效电路模型 

分 类 号：TU5[建筑科学—建筑技术科学]