CNT/GO对高性能导电混凝土性能的影响研究  

Study on the effect of CNT/GO on the properties of high-performance conductive concrete

作　　者：戴志辉 谈彬彬 朱敏涛 DAI Zhihui;TAN Binbin;ZHU Mintao(Shanghai Construction Building Materials Technology Group Co.,Ltd.,Shanghai 200433,China)

机构地区：[1]上海建工建材科技集团股份有限公司,上海200433

出　　处：《混凝土与水泥制品》2025年第4期1-4,14,共5页China Concrete and Cement Products

基　　金：上海市住房和城乡建设管理委员会科研项目(2024-002-021)。

摘　　要：为探索碳纳米材料对高性能导电混凝土性能的影响,研究了不同碳纳米管(CNT)掺量(0.1%、0.2%、0.3%)和氧化石墨烯(GO)掺量(0.1%、0.2%、0.3%、0.4%)对混凝土流动性、力学性能和导电性能的影响。结果表明:随着CNT和GO掺量的增加,混凝土的稠度和流动度均降低,抗折强度和抗压强度基本呈先增加后降低的趋势;CNT和GO掺入后,混凝土的电阻率明显降低;当CNT掺量为0.3%时,试件的电阻率最低;GO的掺入虽也能降低混凝土的电阻率,但其降低效果不及CNT。In order to explore the effect of carbon nanomaterials on the properties of high-performance conductive concrete,the effects of vary dosages of carbon nanotube(CNT)(0.1%,0.2%,0.3%)and graphene oxide(GO)(0.1%,0.2%,0.3%,0.4%)on the fluidity,mechanical properties,and electrical conductivity of the concrete were investigated.The results show that with the increase of CNT and GO dosages,the consistency and fluidity of concrete decrease,and the flexural strength and compressive strength show a trend of increasing first and then decreasing basically.The electrical resistivity of the concrete is significantly reduced after the admixture of CNT and GO.The electrical resistivity of the specimen is the lowest when the dosage of CNT is 0.3%.Although GO also reduces the electrical resistivity of the concrete,its effect is less pronounced compared to CNT.

关 键 词：碳纳米管 氧化石墨烯 水胶比 混凝土 导电性能 

分 类 号：TU528.3[建筑科学—建筑技术科学]