Remote monitoring of concrete condition (REMOCC)

混凝土状况远程监控（REMOCC）

基本信息

批准号：
10022647
负责人：
金额：
$ 7.37万
依托单位：
LATERAL LOGIC LIMITED
依托单位国家：
英国
项目类别：
Collaborative R&D
财政年份：
2022
资助国家：
英国
起止时间：
2022 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=10022647
关键词：
Remote monitoring concrete condition REMOCC

项目摘要

Steel Fibre Reinforced Concrete is gaining market share because of lifetime performance improvements and the opportunity to reduce or eliminate rebar. Previous work has shown that some classes of reinforcing steel fibres can act as passive sensors which can be inspected using external electromagnetic sensing. It was demonstrated that these passive sensors indicate reversible and irreversible effects in concretes loaded and unloaded up to eventual failure.The sensing work undertaken in the project was initially based on an off-the-shelf instrument using Alternative Current Frequency Modulation (ACFM) or variant. Although successful in demonstrating the feasibility of the approach even at the low steel fibre concentrations used industrially in FRC (around 2%) it was limited both in terms of spatial resolution and penetration depth. Development of the sensor technology is now needed to optimize for the sensing application to improve so that condition of concrete structures can be monitored through life as part of asset management.Downsteam innovations are also anticipated. Easy integration of sensing capability into concrete structures will improve competitiveness in civil engineering design, build and maintainance by* confirmation of distribution of fibres at specified levels* allowing leaner design to reduce total mass of concrete in large structure with consequential reduction in embodied energy/carbon* indications of damage state after progressive or singular damage events so structures can be repaired instead of replaced* the project will help accelerate the displacement of rebar by FRC. Rebar installation is expensive both in cost and time and also suffers from a high accident rate, so the shift towards FRM will enhance competitiveness

钢纤维钢筋混凝土由于终生的性能提高以及减少或消除钢筋的机会而获得了市场份额。先前的工作表明，一些钢筋钢纤维可以用作被动传感器，可以使用外部电磁传感进行检查。事实证明，这些被动传感器表明在加载并卸载到最终故障的混凝土中可逆和不可逆的效果。尽管即使在FRC工业上使用的低钢纤维浓度（约2％）的低钢纤维浓度也成功地证明了该方法的可行性，但在空间分辨率和渗透深度方面都受到限制。现在需要开发传感器技术以优化用于改进的传感应用程序，以便可以通过生活作为资产管理的一部分来监视混凝土结构的状况。还可以预计Downsteam创新。通过*确认在指定水平上的纤维分布来确认纤维的分布*允许更精简的设计在大型结构中减少总体质量，而导致体现能量/碳的影响力降低，因此可以在逐渐减少状态或单独的损害事件的指示下，因此可以在较大的能源/碳中降低，因此可以在较大的能源/碳中减少，因此可以替换型损害，因此可以替换型损害，因此可以在较大的能源/碳中减少，因此可以替换了型结构，因此可以在较大的损害中替换，因此可以替换型的损害，而不是维修损坏，而不是维修损害，可以改善损害的指示，而不是维修效率，可以替换为改进的损害*，从而使投影良好替换，可以改善较大的损害，从而可以修复型号*，又可以在较大的结构中减少。钢筋安装在成本和时间上都是昂贵的，并且遭受高事故率的损失，因此向FRM的转变将增强竞争力