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，以建立一个有效的城市生态系统， 物理，社会和经济基础设施，通过智能传感器和先进 数据科学智慧城市中的混凝土基础设施不仅必须安全， 可持续发展，但也必须整合物联网（IoT）和信息 和通信技术（ICT），以实现业务效率， 具有成本效益的维护和寿命终止时的可拆卸性。主 该提案的目标是促进发展安全、可持续、 和数字监控的混凝土结构。 这些目标不仅适用于新 建筑，而且还恶化的结构，需要重新获得他们失去的 能力，以及结构，没有恶化，但仍然需要 加强对地震和火灾等灾害的防御。 该提案侧重于高度发展 利用纳米技术原理描述自我修复的损伤容忍材料， 智能和低碳的行为，并可以放置在结构使用数字 例如3D打印。在这样做的过程中，该计划努力整合尖端 材料科学、传感器和结构工程方面的发现。 该提案侧重于两大领域：第一： 它旨在开发一种新型的纤维增强混凝土，称为生态友好型 韧性水泥基复合材料（EDCC）具有自愈合、耐用、低碳、 和高达6%应变的损伤容限。进一步提出修改矩阵 在EDCC与纳米粒子和增强他们与共挤出回收纤维 从废物流（如轮胎）改性的亲水性和火山灰纳米涂层。 在一种应用中，中空纤维被 建议作为加强i