磷酸盐水泥基碳纤维复合砂浆的压阻性能

关键字：磷酸盐水泥基,碳纤维,复合砂浆,压阻

（1.西藏职业技术学院 建筑工程学院，西藏 拉萨  850000；2.深圳大学 土木工程学院，广东 深圳  518060）

    摘要：以高掺量粉煤灰磷酸盐水泥砂浆为基体，短切碳纤维为功能材料，制备出磷酸盐水泥基碳纤维复合砂浆（PCFM），并利用交流二极法对其在单向加载和循环加载作用下的压阻性能进行了研究。结果表明，碳纤维掺量为1.0%的PCFM试样具有良好的压阻性能，可应用于结构损伤监测。
    关键词：磷酸盐水泥；碳纤维；压阻效应；二极法
    中图分类号：TU57+8.13        文献标识码：A        文章编号：1001-702X（2017）09-0044-05

Study on piezoresistance effect of phosphate cement carbon fiber composite mortar
YI Feng1，DING Zhu2
（1.School of Architecture，Tibet Vocational Technical College，Lhasa 850000，China；
2.College of Civil Engineering，Shenzhen University，Shenzhen 518060，China）

    Abstract：In this paper，phosphate cement carbon fiber mortar（PCFM） sample was prepared by using phosphate cement with high volume of fly ash as matrix and short cut carbon fiber as function materials. And the study on piezoresistive effect of PCFM was carried out by AC two-probe method under one-way loading and cyclic loading. The results showed that the sample of PCFM which carbon fiber content is 1.0% has excellent piezoresistive effect，so that it can be applied to structural damage monitoring.
    Key words：phosphate cement，carbon fiber，piezoresistance effect，two-probe method