深圳大学学报（理工版）2025，Vol.42Issue(4)：412-418,7.DOI:10.3724/SP.J.1249.2025.04412
炭黑改性UHPCC自感知性能及电极设置分析
Self-sensing performance and electrode configuration analysis of carbon black-modified UHPCC
摘要
Abstract
To achieve the self-sensing performance of ultra-high performance cementitious composites(UHPCC),modified UHPCC specimens were prepared with carbon black as a conductive filler.Cyclic compression tests were conducted to investigate the influence of the volume fraction of carbon black on the electrical and self-sensing performance of UHPCC.Finite element analysis was performed to examine the effects of electrode embedding depth and spacing on the resistivity measurements using the four-electrode testing method.Results indicate that under cyclic compressive loading,the peak fractional change in resistivity increases from 4.04%to 13.31%as the carbon black volume fraction rises from 0.3%to 1.5%,with specimens containing 1.5%carbon black exhibiting the best self-sensing performance.Additionally,for the four-electrode testing method,electrode spacing has a negligible impact on the resistivity,while the electrode embedding depth significantly influences the measured resistivity.These findings provide valuable insights for the application of carbon black modified UHPCC in structural health monitoring.关键词
超高性能水泥基复合材料/自感知性能/炭黑/电阻率/有限元分析/电极设置Key words
ultra-high performance cementitious composite/self-sensing performance/carbon black/resistivity/finite element analysis/electrode configuration分类
建筑与水利引用本文复制引用
林伟东,史科,张亚芳,包嗣海,段莉斌,许敬彬..炭黑改性UHPCC自感知性能及电极设置分析[J].深圳大学学报（理工版）,2025,42(4):412-418,7.基金项目
National Natural Science Foundation of China(52278250) （52278250）
Natural Science Foundation of Guangdong Province(2024A1515011782) 国家自然科学基金资助项目(52278250) （2024A1515011782）
广东省自然科学基金资助项目(2024A1515011782) （2024A1515011782）
