Use of Non-destructive Techniques to Detect Damage Induced by Corrosion of Pre-stressing Steel Strands

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44994575%3A_____%2F21%3AN0000123" target="_blank" >RIV/44994575:_____/21:N0000123 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26110/21:PU143516

Result on the web

<a href="https://www.ndt.net/search/docs.php3?id=26457" target="_blank" >https://www.ndt.net/search/docs.php3?id=26457</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Use of Non-destructive Techniques to Detect Damage Induced by Corrosion of Pre-stressing Steel Strands

Original language description

Paper in the Proceedings of the International Conference NDT in Progress, 4.-5.10.2021 Prague: Czech Society for Non-Destructive Testing, 10 pages The aim of this work is to provide confirmation of the possible use of two non-destructive techniques to detect damage of pre-stressing steel strands due to corrosion. For this purpose accelerated corrosion procedure has been conducted on these strands in laboratory conditions. Corrosion consequences were analyzed for various duration of accelerated corrosion process. The ultrasonic techniques and metal magnetic memory (MMM) method were used in this experimental study. The results show the application potential of ultrasonic techniques to analyze the effect of damage induced by accelerated corrosion on the nonlinear elastic behaviour of a steel strands. A new parameter, based on sensing of the magnetic field strength in the form of residual magnetization on the surface of the material, has been used in this study. Appraising parameters of measurement by the metal magnetic memory method were presented in the form of magnetogram – dependence of the magnetic field strength and field gradient on the measured distance. The changes of the magnetic field strength proved different stress concentration zones in the steel strands due to corrosion consequences. Subsequently, the differently corroded strands were subjected to tensile tests in order to determine their mechanical properties to verify and complement results of non-destructive tests. Keywords: pre-stressing steel strands, electrochemical corrosion, cracking, nonlinear ultrasonic testing, metal magnetic memory method. The conference proceedings have been requested for inclusion in the SCOPUS database.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/CK01000108" target="_blank" >CK01000108: New approaches in diagnosis of reinforcement of pre-stressed/post-tensioned concrete bridge beams</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

11th International Workshop NDT in Progress

ISBN

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ISSN

1435-4934

e-ISSN

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Number of pages

10

Pages from-to

1-10

Publisher name

Brno University of Technology and Czech Society For Nondestructive Testing

Place of publication

Brno

Event location

Prague

Event date

Oct 4, 2021

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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