硅酸盐通报2013，Vol.32Issue(7)：1361-1366,1370,7.
碳纳米管对硅酸盐水泥力学性能的影响研究
Study on the Influence of Carbon Nanotubes on the Mechanical Properties of Portland Cement
摘要
Abstract
The influence of Carbon nanotubes (CNTs) one-pot dispersed by ultrasonic method on the physical and mechanical properties of the Portland cement was studied firstly,and then the hydration phase composition and microstructure of Portland cement doped with CNTs composite material were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM).The experiment results show that CNTs can change the water requirement of normal consistency and setting time and improve obviously the compressive and tensile strengths of the Portland cement.The water requirement of normal consistency of cement paste incorporating CNTs enhance with the increasing of CNTs'content,the initial and final setting time become shorter and the compressive and tensile splitting strengths are increased by 15.34％ and 18.44％ after 28 d curing respectively,while its soundness is not affected by adding CNTs.The results of XRD indicate that CNTs can not only enhance the hydration degree of the Portland cement and increase the amount of C-S-H gel,but decrease the amount and degree of crystallization of CH.SEM graphs confirm that the microscopic structure of paste containing CNTs has been optimized and is denser than that of the control specimen.关键词
碳纳米管/硅酸盐水泥/物理性能/力学性能Key words
carbon nanotubes/ portland cement/ physical properties/ mechanical properties分类
建筑与水利引用本文复制引用
赵晋津,任书霞,杜彦良,朱文华,汪文娜,孔丽娟,卢雪..碳纳米管对硅酸盐水泥力学性能的影响研究[J].硅酸盐通报,2013,32(7):1361-1366,1370,7.基金项目
The introduction of overseas project of hebei province(D2011003044) （D2011003044）
Nature science foundation of hebei education department (2011170 and Y 2011112) （2011170 and Y 2011112）
National key laboratory open project fund(SKL201105SIC) （SKL201105SIC）
National natural science foundation of China (51102172,5110828) （51102172,5110828）
National natural science foundation of hebei province (E2012210015,E2011210025) （E2012210015,E2011210025）
The foundation of shijiazhuang tiedao university for excellent young teachers(Z990220609) （Z990220609）
