Behavior of Cracked Grout Bodies of Micro-Piles with Different Corrosion Protection Measures

Matthias J. Rebhan*, Cornelius Dold, Franz Tschuchnigg, Stefan L. Burtscher, Roman Marte

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

Abstract

Tensile elements are used for various geotechnical tasks to transfer loads into the subsoil. With the requirements regarding load-bearing capacity (ULS) and serviceability (SLS), additional issues, such as their durability, must be considered in the design. Due to subsoil properties and groundwater, insufficient corrosion protection can lead to massive corrosion damage of tensile elements. In addition to the effects on service life, such damage can also influence the serviceability and, subsequently, the load-bearing capacity. Therefore, different corrosion protection systems depend on subsoil conditions, the planned service life, and external influences. This paper presents investigations dealing with the issue of corrosion due to cracking of the grout body of micro-piles. In two tests, samples with different corrosion protection measures were subjected to tensile stresses. In addition to a visual recording of the crack patterns, computer tomographic scans were carried out. Therefore, in addition to verifying the crack formation, these investigations allowed us to evaluate the “interior” of the grout body. Thus, the studies provide information on the function of different corrosion protection measures.

Original languageEnglish
Title of host publicationRecent Research on Geotechnical Engineering, Remote Sensing, Geophysics and Earthquake Seismology - Proceedings of the 1st MedGU, Istanbul 2021 Volume 3
EditorsAttila Çiner, Zeynal Abiddin Ergüler, Mourad Bezzeghoud, Mustafa Ustuner, Mehdi Eshagh, Hesham El-Askary, Arkoprovo Biswas, Luca Gasperini, Klaus-Günter Hinzen, Murat Karakus, Cesare Comina, Ali Karrech, Alina Polonia, Helder I. Chaminé
PublisherSpringer Nature
Pages135-137
Number of pages3
ISBN (Print)9783031432170
DOIs
Publication statusPublished - 2024
Event1st International conference on Mediterranean Geosciences Union: MedGU 2021 - Istanbul, Turkey
Duration: 25 Nov 202128 Nov 2021

Publication series

NameAdvances in Science, Technology and Innovation
ISSN (Print)2522-8714
ISSN (Electronic)2522-8722

Conference

Conference1st International conference on Mediterranean Geosciences Union
Abbreviated titleMedGU 2021
Country/TerritoryTurkey
CityIstanbul
Period25/11/2128/11/21

Keywords

  • Corrosion protection
  • Cracking
  • Durability
  • Grout body
  • Micro-piles

ASJC Scopus subject areas

  • Architecture
  • Environmental Chemistry
  • Renewable Energy, Sustainability and the Environment

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