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正变得稀缺和昂贵，同时存在将创新废物材料纳入和优化使用到我们的路面基础设施中的机会。这项研究计划包括实验室和现场综合方法，通过进行基础和应用研究来平衡，最终目标是成本效益高和可持续的更持久、安全和有弹性的路面基础设施。该研究计划的主要重点涉及两个主要主题领域。第一个主题领域致力于将环境可持续性，特别是在加拿大路面设计和管理实践中更高比例地回收各种材料。它涉及可持续路面材料的识别和评估，太阳能道路等路面设计，以及路面施工技术。第二个重点领域是通过纳入考虑气候变化影响的环境数据，包括审查山洪暴发等极端天气事件及其对路面基础设施的影响，来推进路面工程。这项研究是中肯而重要的，因为如果路面要达到更长的设计寿命，它必须考虑在该生命周期期间的荷载和环境影响。这包括更好地了解冻融循环的次数和持续时间、降雨量以及最低和最高路面温度的变化的影响，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洞、更多的车辙和更多的裂缝。这笔探索基金将探索创新的路面技术，以提高和延长路面的使用寿命，并强调使用可持续的技术和材料。这项研究将从技术和经济的角度考虑绿色路面技术。它还将利用现场数据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工作性和可施工性。这项研究将旨在通过培训HQP来推动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.**