Smart Approaches for Enhancing, Renewing and Recycling Concrete Structures

在接下来的几十年里，激进的变革将扰乱和改善我们设计、维护和与建筑环境互动的方式。然而，我们未来的基础设施还需要应对极端自然事件、人口增长、资源稀缺和全球气候变化日益严重的影响。为了应对这些影响，弹性和可持续性必须成为这个未来建筑环境的内在设计特征。混凝土是世界上使用最广泛的建筑材料，这种需求很可能会持续到未来几十年。因此，任何增加新混凝土结构和老化混凝土结构的弹性和改善长期可持续性的机会，都将对我们的整体基础设施产生重大影响。几个战略机会包括：加强新的混凝土结构以提高其弹性和可持续性，更新和延长老化混凝土结构的寿命，以及回收退役混凝土结构。具体地说，这项建议有四个主要目标：1.开发具有内在自我感知能力的新型混凝土材料；2.发展和改善包括回收和其他废物材料在内的结构混凝土的性能；3.评估联合加固和传感劣化混凝土结构的方法；以及4.研究利用先进的光纤传感系统对混凝土结构进行数据驱动的评估。鉴于其极端的气候以及地理上分散和不断增长的人口，开发能够始终以最高效率运行的智能基础设施符合加拿大的既得利益。这项研究的重点是开发解决方案，以最大限度地提高我们的具体基础设施的运营效率。然而，要充分利用这些机会，需要一种更聪明的21世纪方法。因此，这项研究的基础将是应用新的智能技术，包括光纤传感和一类新的数据驱动的分析技术。能够为这种技术和技术的广泛实施提供信息的研究有可能扰乱加拿大目前设计、建造和维护混凝土和其他类型基础设施的方式。拟议的研究计划将为高素质人才(HQP)提供应对21世纪土木工程挑战所需的现代技能集。HQP将参与下一代混凝土材料系统的开发和应用，并将在基础设施传感和以数据为中心的工程等新兴领域发展专门知识。

During the next several decades, radical transformations will disrupt and improve the way we design, maintain and interact with our built environment. However, our future infrastructure will also need to contend with the ever-increasing effects of extreme natural events, population growth, resource scarcity and global climate change. To counter these effects, resiliency and sustainability must be intrinsic design features of this future built environment. Concrete is the most widely used building material in the world and it is likely that this demand will continue well into the coming decades. Therefore, any opportunities for increasing resiliency and improving long-term sustainability of new and aging concrete structures will have a significant impact on our infrastructure as a whole. Several strategic opportunities include: enhancing new concrete structures to improve their resilience and sustainability, renewing and extending the life span of aging concrete structures and recycling decommissioned concrete structures. Specifically, this proposal has four primary objectives including: 1.Developing novel concrete materials with intrinsic self-sensing abilities; 2.Developing and improving the performance of structural concrete incorporating recycled and other waste materials; 3.Evaluating methods of combined strengthening and sensing of deteriorating concrete structures; and 4.Investigating the data-driven assessment of concrete structures using advanced fibre-optic sensing systems. Given its extreme climate and both geographically dispersed and growing population, Canada has a vested interest in developing smarter infrastructure which is capable of operating at its highest levels of efficiency at all times. This research is focused on developing solutions to maximize these levels of operational efficiency for our concrete infrastructure. However, to fully capitalize on these opportunities requires a smarter and 21st century approach. Therefore, underpinning this research will be the application of new smart technologies involving fibre optic sensing and a new class of data-driven analytical techniques. Research which can inform the widespread implementation of such technologies and techniques has the potential to disrupt the way in which concrete and other types of infrastructure are currently designed, built and maintained in Canada. The proposed research program will provide highly qualified personnel (HQP) with the modern skill set required for tackling 21st century civil engineering challenges. HQP will become involved in the development and application of next-generation concrete material systems and will develop expertise in the emerging areas of infrastructure sensing and data-centric engineering.