Durability of the Bond Between Concrete and Fiber-Reinforced Polymer Composites

9908293 Petrou纤维增强聚合物（FRP）复合材料提供了一种修复国家基础设施的实用和参考方法。 然而，它们被广泛接受的一个重大障碍是我们无法预测复合材料与混凝土粘结的耐久性。 本研究的目的是开发适当的方法来预测短期加速老化试验方法的组合物-混凝土粘结的长期耐久性。 一个由土木、机械和化学工程教师和学生组成的多学科团队将采用自然风化技术和加速老化测试来研究复合材料与混凝土结合的耐久性特征。 各种非破坏性评估技术将被开发和使用，以表征粘结参数的耐久性。 基于所产生的试验结果的详细的现象学建模将开始开发一个基本的理解键退化，预测键degradation.The本研究的意义是，加速测试方法和耐久性预测程序，将开发基于键退化的机制的基本理解。 研究成果可在土木工程设计实践中应用。 这将使土木工程界能够更充分地利用FRP材料在基础设施修复中的潜力。

9908293PetrouFiber reinforced polymer (FRP) composites offer a practical and revoluntionary method of rehabilitating the Nation's infrastructure. A significant obstacle to their widespread acceptance, however is our inability to predict the durability of the composite-to-concrete bond. The objective of this research is to develop appropriate methodology for predicting the long-term durability of the compostie-to-concrete bond from short-term accelerated aging test methods. A multi-disciplinary team of Civil, Mechanical and Chemical Engineering faculty and students will employ both natural weathering techniques and accelerated aging tests to investigate durability characteristics of the composite-to-concrete bond. Various non-destructive evaluation techniques will be developed and employed to characterize durability of bond parameters. Detailed phenomenological modeling based on generated test results will be initiated to develop a fundamental understanding of bond deterioration, to predict bond degradation.The significance of this research is that the accelerated test methods and durability prediction procedures that will be developed are based on a fundamental understanding of the mechanisms of bond deterioration. The research results will be readily implemented in civil engineering design practice. This will permit the civil engingeering community to more fully utilize the potential of FRP materials for infrastruture rehabilitation.