High Performance Fiber Reinforced Cement Composites - International Workshop

近年来，纤维增强水泥复合材料(FRC或FRCC)取得了惊人的进展，一方面是由于一些技术的发展(涉及到基质、纤维、界面和复合材料的生产过程)，另一方面是因为人们对控制其特定行为的基本机制有了更好的了解。“高性能”纤维增强水泥复合材料(HPFRCC)的定义目前已被研究人员所熟知，其含义是拉伸时的应力-应变响应，表现出应变硬化并伴随着多个裂缝。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；它不仅为大规模结构应用开辟了道路，不仅在明显的领域，如抗震和抗冲击结构，而且在帮助构思应变硬化水泥基复合材料的创新结构系统方面。拟议讲习班的主要目的是介绍该领域的最新发展，为顶尖专家之间的讨论和信息交流提供一个论坛，记录知识状况的最新进展，设定今后超越的参考基准，并启发在近期研究中遵循的方向。本研讨会的专题包括：1)表征和建模；2)界面特性；3)抗冲击；4)阻燃；5)尺度效应；6)自紧凑特性；7)反向循环载荷下的特性和建模；8)混杂复合材料。更广泛的影响拟议的研讨会将：1)提供处于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)帮助将知识转移到课堂；6)设定超越的参考基准；7)启发在不久的将来研究遵循的方向；8)培育国际合作。高性能混凝土在覆层、管道、电杆、房屋等薄板产品以及抗震、防爆结构中的应用，将对基础设施的使用性能和耐久性产生巨大影响，产生广泛的社会效益。

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.