钢纤维石墨导电混凝土微观结构及其机理分析  

Analysis on the microstructure and mechanism of fiber and graphite in conductive concrete

作　　者：赵若红[1] 钱兴[1] 傅继阳[1] 庄志勇[1] 区浩文 

机构地区：[1]广州大学广东高校结构安全与健康监测工程技术研究中心、广州市结构安全与健康监测重点实验室,广东广州510006

出　　处：《新型建筑材料》2014年第6期41-44,共4页New Building Materials

基　　金：国家自然科学基金项目(51308138);教育部高等学校博士点专项科研基金(20124410120004);广东省自然科学基金项目(S2012010009831);广东高校优秀青年创新人才培养计划(LYM11099)

摘　　要：在大量前期试件制备工作基础上,观察并分析了钢纤维石墨导电混凝土中钢纤维与石墨的分散、搭接及界面状况。探讨了这些微观因素对钢纤维石墨导电混凝土力学和电学性能的影响。分析认为,混合掺加钢纤维和石墨,避免了石墨片状结构导致混凝土的脆性风险,同时减少了钢纤维用量较大导致纤维聚团现象,可获得力学与电学性能均较好的导电混凝土。On the basis of the batch specimen preparation at early state,the condition of the distribution,lap and interface between steel fiber and graphite in steel fiber graphite conductive concrete has been observed,and the influence of microscopic factors on the mechanic and electronic performance of the conductive concrete was discussed. Results show that mixed steel fiber and graphite could decrease the risk of brittle failure of the conductive concrete. Meanwhile, it can reduce the fiber flocculation phenomenon due to large amount of steel fiber consumption, so conductive concrete with better mechanic and electronic perfor- mance can be obtained.

关 键 词：导电混凝土 场发射电镜 能谱分析 界面现象 

分 类 号：TU528[建筑科学—建筑技术科学]