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

基本信息

批准号：
RGPIN-2018-04859
负责人：
Banthia, Nemkumar
金额：
$ 11.58万
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：
2022
资助国家：
加拿大
起止时间：
2022-01-01 至 2023-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=749300
关键词：
SAFE SUSTAINABLE DIGITALLY MONITORED CONCRETE

项目摘要

Smart cities are cities that integrate infrastructureand services to produce an efficient urban eco-system that integrates institutional,physical, social and economic infrastructure through smart sensors and advanceddata-science. Concrete infrastructure in a Smart City must not only be safe andsustainable, but must also integrate Internet of Things (IoT) and Informationand Communication Technology (ICT) to achieve operational efficiency,cost-effective maintenance and end-of-life deconstructability. The primaryobjective 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 newconstruction, but also to deteriorated structure that need to regain their lostcapacity, as well as structures that are not deteriorated but still requiresstrengthening against calamities such as earthquakes and fires. This proposal focuses on development of highlydamage-tolerant materials that utilize principles of nanotechnology to depict self-healing,smartness and low-carbon behavior and can be placed in structures using digitallyempowered processes such as 3-D printing. In doing so, the program strives to integrate cutting edgediscoveries 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-FriendlyDuctile Cementitious Composites (EDCC) that are self-healing, durable, low-carbon,and damage tolerant up to 6% strain. It is further proposed to modify matricesin EDCC with nano-particles and reinforce them with co-extruded recycled fibersfrom waste streams (such as tires) modified with hydrophilic and pozzolanic nano-coatings. In one application, hollow fibers areproposed as reinforcement i

智慧城市是整合基础设施和服务以产生高效城市生态系统的城市，该生态系统通过智能传感器和先进的数据科学整合制度、物理、社会和经济基础设施。智慧城市的具体基础设施不仅必须安全、可持续，还必须集成物联网 (IoT) 和信息通信技术 (ICT)，以实现运营效率、经济高效的维护和报废后的可解构性。该提案的主要目标是为智慧城市开发安全、可持续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建筑，还适用于需要恢复损失能力的受损结构，以及未受损但仍需要加强抵御地震和火灾等灾害的结构。该提案的重点是开发高度耐损伤的材料，这些材料利用纳米技术原理来描述自我修复、智能和低碳行为，并且可以使用 3D 打印等数字化工艺将其放置在结构中。为此，该项目致力于整合材料科学、传感器和结构工程领域的前沿发现。该提案主要关注两大领域：第一：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复合材料 (EDCC)，具有自愈、耐用、低碳和最高可承受 6% 应变的损伤能力。进一步提出用纳米颗粒改性 EDCC 基质，并用来自废物流（例如轮胎）的共挤出再生纤维增强它们，并用亲水性和火山灰纳米涂层改性。在一种应用中，中空纤维被建议作为增强材料