报告题目：Performance of Fiber Reinforced Materials: Historic Perspective and Glance in the Future
报告人：SurendraP. Shah
时间：2017年11月7日上午10:30
地点：安中A322
报告内容简介：Ideally high performance fiber reinforced concrete should have enhanced modulus of elasticity, higher bend over point, sustained strain hard- ening response characterized by sequential multiple cracking with controlled crack widths. Conventional fiber reinforced concrete primarily alters the post peak response and can constrain macro cracks. Strain hardening response can be obtained by controlling processing (extrusion, pultrusion, spraying chopped fiber and cement slurry), volume, type and geometry of fibers (e.g. textile) and rhe- ology of matrix (self-consolidating concrete (SCC), ultra-high performance concrete (UHPC)). Use of nanofibers such as carbon nanotubes (CNT) and car- bon nanofibers (CNF) fundamentally alters the nano structure of calcium silicate hydrate (C-S-H) gel. Reinforcing concrete with CNT can enhance modulus of elasticity, enhance toughness, reduce autogenous shrinkage and delay corrosion of steel bar reinforcement. Modeling and characterizing interfaces at multiscale is critical in development of high performance fiber reinforced concrete.
报告人简介：Surendra P. Shah，美国西北大学教授、美国工程院院士，中国工程院外籍院士，印度工程院院士，国际材料与结构研究实验联合会杂志《Materials and Structures》主编，发表高水平学术论文400余篇，编撰学术著作20多部。