报告人：Nimal Rajapakse（加拿大工程院院士）

时间： 8月31号（周四）下午3:00-4:30

地点：澳门尼威斯人官网1号楼210会议室

主持人：李法新 研究员

内容摘要：

      This study shows that incorporating laboratory-synthesized and commercial graphene oxide (GO) obtained from CGT improved the overall rheological properties of cement paste and the mechanical and durability properties of cement mortar. The best performance of GO-embedded mortar was observed with the optimum addition of 0.03% w.r.t. to the weight of cement. The influence of GO on the properties was determined through the micro-structural and chemical characterization of lab-produced and commercial GO. XRD, SEM+EDX, BET and TGA analysis was conducted to justify the reasons for the improvement in the properties of mortar. In addition, due to the slight instability of GO with age, the impact of GO’s age on the properties of cement mortar was also studied. The nanosheets and mortar were characterized to determine the reasons behind the change in performance.

报告人简介：

      Dr. Nimal Rajapakse is a leading scholar in the Mechanics of Materials with over 35 years of work experience in Canada. He is currently the Senior Deputy Vice-Chancellor and Provost of the Sri Lanka Institute of Information Technology, Professor Emeritus of Simon Fraser University and Adjunct Research Professor of Carleton University, Canada. He served as the Head of the Department of Civil Engineering at the University of Manitoba, Canada, and the Department of Mechanical Engineering at the University of British Columbia, Canada. He was Dean of the Faculty of Applied Sciences at Simon Fraser University and Vice-President (Research and International) of Carleton University.

      Dr. Rajapakse is a Fellow of the Canadian Academy of Engineering, National Academy of Sciences of Sri Lanka and the Canadian Society for Civil Engineering. He received the Horst Leipholz Medal of CSCE, the Meritorious Achievement Award of the Association of Professional Engineers and Geoscientists of British Columbia, the Special Visiting Professor Award of the Science Without Borders Program of Brazil, the Alexander von Humboldt Research Fellowship of Germany and the Rh Award in Applied Sciences. He has published over 200 journal papers and serves on the editorial boards of five international journals.

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