Fabric Reinforced Cementitious Mortar (FRCM) for Structural Strengthening and Seismic Retrofit

用于结构加固和抗震改造的织物增强水泥砂浆 (FRCM)

• 批准号: RGPIN-2017-06636
• 负责人: Rteil, Ahmad
• 金额: $ 1.53万
• 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=678086
• 关键词: Fabric; Reinforced; Cementitious; Mortar; FRCM

Canada's infrastructure, mostly built with reinforced concrete (RC), is worth trillions of dollars. Over the years, the demand on the infrastructure has increased, while its state has deteriorated due to different damaging mechanisms. This fact has put the public in danger as well as Canada's economic growth in jeopardy.*******To meet this challenge, engineers and researchers have been looking into the use of more durable and effective materials to rehabilitate existing structures. The newest emerging and innovative technology in the rehabilitation field is fabric reinforced cementitious mortar (FRCM) also known as textile-reinforced mortar (TRM). FRCM is composed of high strength, lightweight textile fibres embedded in inorganic, cement-based mortar. FRCM are characterized by their high strength-weight ratio, non-corrosiveness, ability to resist high temperatures and to be applied on wet surfaces. The little research that was conducted so far to investigate the feasibility of FRCM to rehabilitate existing structures, has suggested that FRCM will be an excellent rehabilitation material. However, engineers are still lacking a thorough understanding of the behaviour of structures rehabilitated with FRCM as well as the design techniques required to work with it.*******The long-term goal of this proposed research program is to incorporate FRCM in building and bridge codes as a strengthening material. This will be achieved on the short term by examining the effect of FRCM on the flexural strength and seismic capacity and deformability of RC members. In the next five years, the program will train 12 highly qualified personal (graduate and undergraduate students) which will help in the creation of high-value jobs in Canada.*******This research program innovation lays in developing an efficient repair method using sustainable materials that will save time and cost compared to other repair methods, thus will increase public safety and the infrastructure reliability. What distinguishes this proposal is the fact that it will be the first comprehensive study on FRCM as a strengthening material in Canada and among the first in the world.***

加拿大的基础设施，主要是用钢筋混凝土（RC）建造的，价值数万亿美元。多年来，对基础设施的需求不断增加，但由于不同的破坏机制，基础设施的状况不断恶化。这一事实使公众处于危险之中，也使加拿大的经济增长处于危险之中。为了应对这一挑战，工程师和研究人员一直在研究使用更耐用、更有效的材料来修复现有结构。在修复领域最新出现的创新技术是织物增强水泥砂浆（FRCM），也称为织物增强砂浆（TRM）。FRCM由嵌入无机水泥基砂浆中的高强度轻质纺织纤维组成。FRCM的特点是其高强度重量比，无腐蚀性，耐高温的能力，并在潮湿的表面上应用。到目前为止，很少有研究调查FRCM修复现有结构的可行性，这表明FRCM将是一种优秀的修复材料。然而，工程师们仍然缺乏对FRCM修复结构的行为以及使用它所需的设计技术的全面了解。这项研究计划的长期目标是将FRCM作为一种加固材料纳入建筑和桥梁规范。这将在短期内通过检查FRCM对RC构件的抗弯强度和抗震能力以及变形能力的影响来实现。在未来五年内，该计划将培养12名高素质的个人（研究生和本科生），这将有助于在加拿大创造高价值的就业机会。这项研究计划的创新在于开发一种使用可持续材料的有效维修方法，与其他维修方法相比，这种方法将节省时间和成本，从而提高公共安全和基础设施的可靠性。这一建议的与众不同之处在于，它将是加拿大第一份关于FRCM作为加强材料的全面研究报告，也是世界上第一份报告。