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Muography for Inspection of Civil Structures

Authors :
Subhendu Das
Sridhar Tripathy
Priyanka Jagga
Purba Bhattacharya
Nayana Majumdar
Supratik Mukhopadhyay
Source :
Instruments, Vol 6, Iss 4, p 77 (2022)
Publication Year :
2022
Publisher :
MDPI AG, 2022.

Abstract

Aging infrastructure is a threatening issue throughout the world. Long exposure to oxygen and moisture causes premature corrosion of reinforced concrete structures leading to the collapse of the structures. As a consequence, real-time monitoring of civil structures for rust becomes critical in avoiding mishaps. Muon scattering tomography is a non-destructive, non-invasive technique which has shown impressive results in 3D imaging of civil structures. This paper explores the application of advanced machine learning techniques in identifying a rusted reinforced concrete rebar using muon scattering tomography. To achieve this, we have simulated the performance of an imaging prototype setup, designed to carry out muon scattering tomography, to precisely measure the rust percentage in a rusted rebar. We have produced a 2D image based on the projected 3D scattering vertices of the muons and used the scattering vertex density and average deviation angle per pixel as the distinguishing parameter for the analysis. A filtering algorithm, namely the Pattern Recognition Method, has been employed to eliminate background noise. Since this problem boils down to whether or not the material being analyzed is rust, i.e., a classification problem, we have adopted the well-known machine learning algorithm Support Vector Machine to identify rust in the rusted reinforced cement concrete structure. It was observed that the trained model could easily identify 30% of rust in the structure with a nominal exposure of 30 days within a small error range of 7.3%.

Details

Language :
English
ISSN :
2410390X
Volume :
6
Issue :
4
Database :
Directory of Open Access Journals
Journal :
Instruments
Publication Type :
Academic Journal
Accession number :
edsdoj.f1ec564fbfdb4fe980a49ea0893812c4
Document Type :
article
Full Text :
https://doi.org/10.3390/instruments6040077