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: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=692085
• 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

***智能城市是整合基础设施*和服务的城市，以生产有效的城市生态系统，该系统通过智能传感器和高级*数据科学整合机构，实际，社会和经济基础架构。智能城市中的混凝土基础设施不仅必须是安全且可持续的，而且还必须整合物联网（IoT）和信息*以及通信技术（ICT），以实现运营效率，*具有成本效益的维护和寿命最终的可塑造性。该提案的主要目标是为智能城市的安全，可持续性和数字监控的混凝土结构做出贡献。 这些目标不仅适用于新的*结构，而且还适用于需要恢复其失去*容量的结构，以及没有恶化的结构，但仍需要*加强诸如地震和火灾等灾难。 *** ***该提案的重点是开发高度*具有损害的材料，这些材料利用纳米技术原理描述自我修复，*智能和低碳行为，并可以使用数字*授权的过程（例如3-D打印）将其放置在结构中。为此，该计划致力于整合材料科学，传感器和结构工程中的最前沿*。 *** ***该提案的重点是两个广泛的领域：*它声称要开发一种新型的纤维增强混凝土，称为生态友好型*延性水泥化合物（EDCC），它们是自我修复，耐用，低碳，*和损害耐受性高达6％的损害。进一步提议用纳米颗粒在EDCC中修改矩阵*，并用从废物流（例如轮胎）中的共同挖掘的再生纤维*加强它们。