Application of acoustic emission for damage classification and assessment of corrosion in pre-stressed concrete pipes

Goldaran R., TÜRER A.

MEASUREMENT, vol.160, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 160
  • Publication Date: 2020
  • Doi Number: 10.1016/j.measurement.2020.107855
  • Journal Name: MEASUREMENT
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Compendex, INSPEC
  • Keywords: Acoustic emission, Corrosion identification, Pre-stressed concrete pipe, Accelerated corrosion, Health monitoring
  • Middle East Technical University Affiliated: Yes

Abstract

The present study describes the usage of the AE technique for detecting different types of damage in corrosion process with characterization of corresponding AE sources in pre-stressed concrete cylinder pipes. Firstly, several small-scale tests were implemented to specify the characteristics of AE sources including water absorption of concrete, hydrogen bubbles bursting and concrete cracks, as well as determining the appropriate sensors positions. Later on, a full-scale pre-stressed pipe was subjected to corrosion under both constant and variable pressure; aiming to detect and classify the mixed type of damage sources. The results indicated that using AE technique, all sorts of damage sources can be classified at any stage of pipe life-cycle. (C) 2020 Elsevier Ltd. All rights reserved.