Sustainable and Resilient Long Life Pavements

在加拿大，道路和人行道是一项巨大的投资。规划、设计、建造、维护和管理具有成本效益的高质量道路和人行道是各省、地区、城市、市政当局和机场当局面临的重大挑战。在加拿大的许多地区，高质量的道路建筑材料变得稀缺和昂贵，而将创新废物材料纳入我们的路面基础设施并优化使用的机会存在。该研究项目包括一个综合的实验室和现场方法，通过进行基础和应用研究来平衡，最终目标是更持久，安全和弹性的路面基础设施，具有成本效益和可持续性。研究计划的主要焦点涉及两个主要主题领域。第一个主题领域的工作是正式将环境可持续性，特别是各种材料的高百分比回收纳入加拿大的路面设计和管理实践。它涉及到可持续路面材料、路面设计（如太阳能道路）和路面施工技术的识别和评估。第二个重点主题领域是通过结合考虑气候变化影响的环境数据来推进路面工程，包括检查极端天气事件，如山洪暴发及其对路面基础设施的影响。这项研究是相关的和重要的，因为如果一个路面要实现更长的设计寿命，它必须考虑在生命周期内的载荷和环境影响。这包括更好地理解冻融循环次数和持续时间、降水量以及最低和最高路面温度变化的影响，因为所有这些因素都会影响性能。如果不考虑当前和未来的环境条件，设计寿命将无法实现，因为加拿大各地的路面结构将出现更多的坑洼、车辙和裂缝。该发现基金将探索创新的路面技术，以提高和延长路面寿命，重点是可持续技术和材料的使用。本研究将在技术和经济背景下考虑绿色路面技术。它还将利用现场数据来开发现实的长期性能模型，研究计划将正式考虑新设计和材料的可操作性和可建造性。这项研究将通过培训HQP来促进加拿大最先进的实践，HQP将成为这一重要领域的下一代创新者

Roads and pavements represent a massive investment in Canada. Planning, designing, constructing, maintaining and managing cost effective, high quality roads and pavements are a major challenge to provinces, territories, cities, municipalities and airport authorities. In many areas of Canada, high quality road building materials are becoming scarce and expensive, while opportunities exist to incorporate and optimize the use of innovative waste materials into our pavement infrastructure. This research program involves an integrated laboratory and field approach which is balanced by conducting basic and applied research with the end goal of longer lasting, safe and resilient pavement infrastructure which are cost effective and sustainable. The major focus of the research program involves two primary theme areas. The first theme area works on formally incorporating environmental sustainability, particularly recycling of various materials in higher percentages into Canadian pavement design and management practices. It involves identification and evaluation of sustainable pavement materials, pavement designs such as solar roads, and pavement construction technologies. The second theme area of focus is on the advancement of pavement engineering through the incorporation of environmental data which considers climate change impacts including examining extreme weather events such as flash flooding and their impact on pavement infrastructure. This research is pertinent and important because if a pavement is going to achieve a longer design life, it must consider both loading and environmental impacts over that life cycle period. This involves better understanding of the impacts of both the number and duration of freeze-thaw cycles, precipitation quantities and changes in minimum and maximum pavement temperatures as all of these factors impact performance. If both current and future environmental conditions are not considered, design lives will not be achieved as there will be increased potholes, increased rutting and increased cracking distresses on pavement structures across Canada. This Discovery Grant will explore innovative pavement technologies that advance and extend pavement life with a strong emphasis on usage of sustainable technologies and materials. This research will consider green pavement technologies within a technical and economic context. It will also utilize field data to develop realistic long term performance models and the research program will formally consider workability and constructability of new designs and materials. The research will be directed at advancing state-of-the-art practice in Canada through the training of HQP who will be the next generation of innovators in this vital area.**