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，以建立一个高效的城市生态系统，该系统将制度、 通过智能传感器和先进的物理、社会和经济基础设施 数据科学。智慧城市的具体基础设施不仅必须安全而且 可持续发展，但还必须整合物联网 (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解构性。初级 该提案的目标是促进安全、可持续、 以及智慧城市的数字监控混凝土结构。 这些目标不仅适用于新 建设，但也需要恢复其失去的恶化结构 容量以及未恶化但仍需要的结构 加强地震、火灾等灾害防御。 该提案的重点是开发高度 利用纳米技术原理来描述自我修复的耐损伤材料， 智能和低碳行为，可以使用数字方式放置在结构中 3D 打印等授权流程。在此过程中，该计划致力于整合最先进的技术 材料科学、传感器和结构工程方面的发现。 该提案重点关注两大领域：第一： 它旨在开发一种新型纤维增强混凝土，称为生态友好型 延性水泥基复合材料 (EDCC) 具有自修复、耐用、低碳、 损伤耐受力高达 6%。进一步建议修改矩阵 在 EDCC 中添加纳米颗粒，并用共挤出再生纤维对其进行增强 来自用亲水性和火山灰纳米涂层改性的废物流（例如轮胎）。 在一种应用中，中空纤维是 建议作为强化物 i