Fire resistance of concrete structures containing advanced materials

北美的基础设施正在崩溃。媒体对大火、结构不安全的建筑和坍塌的桥梁的报道变得越来越频繁。许多混凝土结构迫切需要修复或修复，但当前的经济危机要求我们开发创新的材料和具有成本效益的修复技术。不幸的是，关于这些修复结构在火灾中的性能，特别是在使用新材料进行修复的情况下，信息不足和不充分。对于建筑物或停车场，防火是保护公共安全的一个至关重要的问题，世界贸易中心灾难等悲惨事件以及西班牙和荷兰因火灾而发生的戏剧性建筑倒塌就是明证。因此，拟议研究的总体目标是了解修复混凝土结构在火灾中的行为。这项研究的最终目的将是评估火灾对建筑物整体的影响，而不是个别部分的行为。

North American infrastructure is crumbling. Media reports of dramatic fires, structurally unsafe buildings and failed bridges are becoming more frequent. Many concrete structures are in urgent need of repair or rehabilitation, yet the current economic crisis demands that we develop innovative materials and cost-effective techniques for repair. Unfortunately, there is insufficient and inadequate information regarding the performance of these repaired structures in fire; especially when new materials are used for repair. For buildings or parking garages, fire resistance is a vital concern to protect public safety as evidenced by tragic events such as the World Trade Center disaster, and dramatic building collapses due to fire in Spain and the Netherlands. Thus, the overall aim of the proposed research is to obtain an understanding of the behaviour of rehabilitated concrete structures in fire. The research will ultimately aim to evaluate how fire impacts buildings as a whole, rather than the behaviour of individual parts.