Increasing flexural strength and toughness of cement mortar using multi-walled Carbon nanotubes
محل انتشار: مجله بین المللی ابعاد نانو، دوره: 5، شماره: 4
سال انتشار: 1393
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 149
فایل این مقاله در 10 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_IJND-5-4_012
تاریخ نمایه سازی: 24 تیر 1401
چکیده مقاله:
In this study the effect of using multi-walled carbon nanotube (MWCNT) on flexural and compressive strengths, ultimate displacement and energy absorption capability of standard cement mortar considering different weight percentages of nanotubes as well as different dispersion methods has been investigated. Influential point in adding nanotubes to the composites is their proper dispersion, which is considered by comparing the results of two different dispersion methods. According to the test results and scanning electron microscope (SEM) images, the method using functionalized MWCNTs together with ultrasonication is pointed as an appropriate dispersion method. Using nanotubes resulted in significantly increase in the flexural strength and specially toughness of cement mortar which represents the ability of properly dispersed nanotubes in bridging and closure of the micro cracks. Finally, the observed results has been assessed with a statistical analysis and validated with acceptable significance levels.
کلیدواژه ها:
نویسندگان
J. Esmaeili
Assistant Professor, Department of Structural Engineering, School of Civil Engineering, University of Tabriz, Tabriz, Iran.
A. R. Mohammadjafari
Ph.D. Student, Department of Structural Engineering, School of Civil Engineering, University of Tabriz, Tabriz, Iran.