scholarly journals Existing concrete structures: Life management, testing and structural health monitoring

2020 ◽  
Vol 21 (4) ◽  
pp. 1212-1212
Author(s):  
Alfred Strauss ◽  
Sylvia Kessler ◽  
Maria Pina Limongelli ◽  
Konrad Bergmeister
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Concrete Structures ◽  
Structural Health ◽  
Life Management

scholarly journals Connecting concrete technology and machine learning: proposal for application of ANNs and CNT/concrete composites in structural health monitoring

RSC Advances ◽  
2020 ◽  
Vol 10 (39) ◽  
pp. 23038-23048
Author(s):  
Sofija Kekez ◽  
Jan Kubica
Keyword(s):  
Machine Learning ◽  
Carbon Nanotube ◽  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Large Scale ◽  
Concrete Structures ◽  
Concrete Technology ◽  
Structural Health

Carbon nanotube/concrete composite possesses piezoresistivity i.e. self-sensing capability of concrete structures even in large scale.

STRUCTURAL HEALTH MONITORING OF CORROSION POTENTIAL IN CONCRETE BRIDGE DECKS

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Hani Nassif ◽  
Chaekuk Na ◽  
Hasan Al-Nawadi ◽  
Adi Abu-Obeida ◽  
William Wilson
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Corrosion Potential ◽  
Silver Chloride ◽  
Bridge Decks ◽  
Concrete Structures ◽  
Concrete Bridge ◽  
Accelerated Corrosion ◽  
Structural Health ◽  
Concrete Bridge Decks

Structural Health Monitoring (SHM) of concrete structures during construction, as well as over its service life, has recently become more attractive to owners and consulting engineers. With the introduction of new materials and construction methods, various types of concrete structures are being instrumented with monitoring devices to determine their performance and response to various loading conditions. Among many other objectives, this includes monitoring concrete performance at the serviceability and durability limit states. This paper is an overview of an on-going program for the SHM of concrete bridge decks in the State of New Jersey focusing on field performance. Three types of corrosion sensors are instrumented to monitor the corrosion activities in concrete decks; one is the silver-silver chloride electrode and the other two are multi element probe (MEP) corrosion sensors. Other types of MEPs were also instrumented on bridge decks during reconstruction in late 1990s to monitor the corrosion potential of the bridge decks. Various types of sensors are installed in precast panels during fabrication as well as in-situ cast concrete decks during and after construction. Moreover, a laboratory-based accelerated corrosion testing program is also performed on concrete specimens using various types of rebars. This ongoing study is aimed at correlating laboratory-accelerated corrosion results with long-term performance of the steel in concrete bridge decks under field conditions.

scholarly journals Structural Health Monitoring by Magnetic Sensing in Concrete Structures via Embedded Shape Memory Alloy Components

2019 ◽  
Vol 271 ◽  
pp. 01003
Author(s):  
Allen Davis ◽  
Mirmilad Mirsayar ◽  
Darren Hartl
Keyword(s):  
Structural Health Monitoring ◽  
Shape Memory ◽  
Health Monitoring ◽  
Concrete Structures ◽  
Magnetic Shape Memory ◽  
Prognostic Information ◽  
Magnetic Sensing ◽  
Measurement Capability ◽  
Structural Health ◽  
Structural Reinforcement

In the field of structural health monitoring (SHM), innovative methods of non-destructive evaluation (NDE) are currently being investigated with the purpose of providing prognostic information toward safer, longer lasting structures. Therefore, it is desirable to integrate NDE techniques with existing structural reinforcement techniques for in situ measurement capability, increasing service life. Magnetic shape memory alloys (MSMAs) offer the potential for NDE via magnetic sensing, while further offering the multi-functionality of crack closing and structural reinforcement. The current research proposes a novel SHM approach for concrete structures using embedded MSMAs for magnetic sensing, and investigates the properties of such a system.

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