碳纳米管在UHPC中的分散效果及对UHPC力学性能的影响  

Dispersion Effect of Carbon Nanotubes in UHPC and Its Influence on Mechanical Properties of UHPC

作　　者：成芳[1] 李小明 黄政宇[3] CHENG Fang;LI Xiao-ming;HUANG Zheng-yu(Chifeng University,Chifeng 024000,China;Shanxi Transportation Research Institute Co.,Ltd.,Taiyuan 030032,China;Key Laboratory for Wind and Bridge Engineering of Hunan Province,Hunan University,Changsha410082,China)

机构地区：[1]赤峰学院,内蒙古赤峰024000 [2]山西省交通科学研究院,山西太原030032 [3]湖南大学风工程与桥梁工程湖南省重点实验室,湖南长沙410082

出　　处：《混凝土与水泥制品》2023年第4期6-8,29,共4页China Concrete and Cement Products

基　　金：内蒙古自然科学基金项目(2019MS05006)。

摘　　要：为了研究碳纳米管(CNTs)在超高性能混凝土(UHPC)中的分散效果及其对UHPC力学性能的影响,进行了不同CNTs掺量UHPC的动力黏度、抗压强度和抗折强度试验。结果表明:CNTs在UHPC基体中的分散效果随着CNTs掺量的增加而不断变差,且会导致较高CNTs掺量的UHPC力学性能降低;当CNTs掺量为0.1%时,CNTs增强UHPC的力学性能最佳。In order to study the dispersion effect of carbon nanotubes(CNTs)in ultra-high performance concrete(UHPC)and its influence on the mechanical properties of UHPC,shear viscosity,compressive strength and flexural strength of UHPC with different CNTs content were tested.The results show that the dispersion effect of CNTs in UHPC matrix deteriorates with the increase of CNTs content,and the mechanical properties of UHPC decrease with the increase of CNTs content.When the CNTs content is 0.1%,the mechanical properties of UHPC are the best.

关 键 词：多壁碳纳米管 超高性能混凝土 分散效果 抗压强度 

分 类 号：TU528.572[建筑科学—建筑技术科学]