SAFE, SUSTAINABLE AND DIGITALLY-MONITORED CONCRETE STRUCTURES FOR SMART CITIES

智慧城市的安全、可持续和数字化监控的混凝土结构

• 批准号: RGPIN-2018-04859
• 负责人: Banthia, Nemkumar
• 金额: $ 5.79万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=713296
• 关键词: SAFE; SUSTAINABLE; DIGITALLY; MONITORED; CONCRETE

Smart cities are cities that integrate infrastructure and services to produce an efficient urban eco-system that integrates institutional, physical, social and economic infrastructure through smart sensors and advanced data-science. Concrete infrastructure in a Smart City must not only be safe and sustainable, but must also integrate Internet of Things (IoT) and Information and Communication Technology (ICT) to achieve operational efficiency, cost-effective maintenance and end-of-life deconstructability. The primary objective of this proposal is to contribute towards development of safe, sustainable, and digitally-monitored concrete structures for Smart Cities. These objectives apply not only to new construction, but also to deteriorated structure that need to regain their lost capacity, as well as structures that are not deteriorated but still requires strengthening against calamities such as earthquakes and fires. This proposal focuses on development of highly damage-tolerant materials that utilize principles of nanotechnology to depict self-healing, smartness and low-carbon behavior and can be placed in structures using digitally empowered processes such as 3-D printing. In doing so, the program strives to integrate cutting edge discoveries in materials sciences, sensors and structural engineering. The proposal focuses on two broad areas: FIRST: It purports to develop a novel class of fiber reinforced concretes called Eco-Friendly Ductile Cementitious Composites (EDCC) that are self-healing, durable, low-carbon, and damage tolerant up to 6% strain. It is further proposed to modify matrices in EDCC with nano-particles and reinforce them with co-extruded recycled fibers from waste streams (such as tires) modified with hydrophilic and pozzolanic nano-coatings. In one application, hollow fibers are proposed as reinforcement i

智慧城市是整合基础设施的城市 和服务，以产生一个高效的城市生态系统，将制度、 物理、社会和经济基础设施通过智能传感器和高级 数据科学。智慧城市中的混凝土基础设施不仅必须安全和 可持续，但也必须集成物联网(IoT)和信息 和通信技术(ICT)，以实现运营效率， 具有成本效益的维护和报废可拆卸性。初级阶段 这项建议的目标是促进安全、可持续、 以及用于智能城市的数字监控混凝土结构。这些目标不仅适用于新的 建筑，也要到破旧的结构，需要找回它们失去的 能力，以及没有恶化但仍需要 加强对地震、火灾等灾害的抵御。 这项建议的重点是发展高度 利用纳米技术原理描绘自我修复的耐损伤材料， 智能和低碳行为，可以使用数字技术放置在结构中 支持3D打印等流程。在这样做的过程中，该计划努力整合尖端技术 材料科学、传感器和结构工程方面的发现。 该建议主要集中在两大领域：第一： 它声称要开发一种名为生态友好型的新型纤维混凝土 延性水泥基复合材料(EDCC)具有自我修复、耐用、低碳、 耐损性高达6%的应变。进一步提出了修改矩阵的方法 在EDCC中加入纳米颗粒并用共挤出再生纤维增强 利用使用亲水性和火山灰性质的纳米涂料改性的废气(如轮胎)。 在一种应用中，中空纤维 建议作为加强件I