石墨-水泥灌浆材料导电性能的试验研究  

Experimental study on conductive properties of graphite-cement based material

作　　者：孙建虎[1] 刘颖芳[1] 颜丽桃 张同周 陈取锋 

机构地区：[1]后勤工程学院土木系,重庆401311 [2]重庆市渝北区气象局,重庆401120 [3]西藏军区日喀则军分区,西藏日喀则857000

出　　处：《四川建筑科学研究》2014年第1期233-236,共4页Sichuan Building Science

基　　金：总后基建营房部资助项目(AY210J001)

摘　　要：石墨-水泥灌浆材料采用低价的工业石墨粉作为导电材料,兼有导电材料的导电特性和灌浆材料高流动性的特点,适合材料用量较大的防雷接地工程。通过试验研究了石墨-水泥灌浆材料的导电规律和试件质量。试验发现,材料电阻率随石墨掺量的增加而变小,随龄期增长而变大,石墨掺量大的试件极易开裂,工业石墨粉对水泥基材料电阻率的降低效果不明显。石墨掺量过高、过低的试件电阻率离散性较大,试件质量不易控制。Graphite cement grouting material attractive low price industrial graphite as conouctlve matenat wlm nora conuucuwty characteristics and high mobility characteristics is suitable for lightning protection grounding engineering which calls for a large amount of material. Conductive characters and specimen quality of graphite-cement grouting material are studied through the test. Research showed：Material resistivity decreases with graphite content increase and increase with age. Specimen with large graphite content is easy to crack. Effect of industrial graphite powder on cement based materials resistivity is not obvious. Resistivity varied while graphite content is too high or low and specimen quality is not easy to control.

关 键 词：石墨 水泥 流动度 电阻率 质量 

分 类 号：TU411[建筑科学—岩土工程]