High Performance Fiber Reinforced Cement Composites - International Workshop

高性能纤维增强水泥复合材料 - 国际研讨会

• 批准号: 0236859
• 负责人: Antoine Naaman
• 金额: $ 2.05万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-03-01 至 2004-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0236859&HistoricalAwards=false
• 关键词: Performance; Fiber; Reinforced; Cement; Composites

Summary: Fiber reinforced cement composites (FRCs or FRCCs) have made striking advances in recent years, due, on one hand, to several technological developments (involving the matrix, the fiber, the interface, and the composite production process) and, on the other hand, to a better understanding of the fundamental mechanisms controlling their particular behavior. The definition of "high performance" fiber reinforced cement composites (HPFRCC) is now well understood by researchers and implies a stress-strain response in tension that exhibits strain hardening accompanied by multiple cracking. High performance behavior at low fiber content, that is, lower cost is one of the objective of many research studies; it opens the way to large scale structural applications not only in evident areas such as seismic and impact resistant structures, but also in helping conceive innovative structural systems with strain hardening cement-based composites. The main objective of the proposed workshop is to lay out the latest developments in the field, provide a forum for discussion and exchange of information among top specialists, record up-to-date advances in the state of knowledge, set a reference benchmark to surpass in the future, and inspire directions to follow in near-future research. Special topics selected for this workshop include: 1) characterization and modeling; 2) interface properties; 3) impact resistance; 4) fire resistance; 5) scale effects; 6) self-compacting properties; 7) properties and modeling under reverse cyclic loading; and 8) hybrid composites. Broader ImpactThe proposed workshop will: 1) provide ideas and solutions at the forefront of research in the field; 2) foster a better understanding of the behavior, mechanics and applications of cement-based composites; 3) help strengthen the technical background of participants allowing them to address more challenging technical issues in the future; 4) engage and train younger researchers; 5) help in knowledge transfer to the classroom; 6) set a reference benchmark to surpass; 7) inspire directions to follow in near-future research; and 8) nurture international cooperation.The applications of HPFRCC in thin sheet products such as cladding, pipes, poles, and housing, as well as in seismic and blast resistant structures, will have an immense impact on the serviceability and durability of the infrastructure leading to broad benefits to society.

摘要：纤维增强水泥复合材料（FRC 或 FRCC）近年来取得了惊人的进步，一方面是由于多项技术的发展（涉及基体、纤维、界面和复合材料生产工艺），另一方面是由于对其特定行为的基本机制有了更好的理解。 “高性能”纤维增强水泥复合材料（HPFRCC）的定义现在已被研究人员很好地理解，它意味着拉伸下的应力应变响应，表现出应变硬化并伴有多次开裂。 低纤维含量下的高性能行为，即更低的成本，是许多研究的目标之一；它不仅为抗震和抗冲击结构等明显领域的大规模结构应用开辟了道路，而且还有助于构想具有应变硬化水泥基复合材料的创新结构系统。研讨会的主要目的是展示该领域的最新发展，为顶级专家之间的讨论和信息交流提供论坛，记录知识状态的最新进展，设定未来超越的参考基准，并启发近期研究的方向。 本次研讨会选定的专题包括：1）表征和建模； 2）接口属性； 3）耐冲击性； 4）耐火性； 5）规模效应； 6）自密实性能； 7）反向循环载荷下的性能和建模； 8）混合复合材料。更广泛的影响拟议的研讨会将：1）提供该领域研究前沿的想法和解决方案； 2）促进对水泥基复合材料的行为、力学和应用的更好理解； 3）帮助加强参与者的技术背景，使他们能够解决未来更具挑战性的技术问题； 4）吸引和培训年轻的研究人员； 5）帮助知识转移到课堂； 6）设定超越的参考基准； 7）激发近期研究的方向； 8）培育国际合作。HPFRCC在覆层、管道、电线杆和房屋等薄板产品以及抗震和抗爆结构中的应用将对基础设施的适用性和耐久性产生巨大影响，从而为社会带来广泛利益。