Corrosion study of concrete using PGNAA technique

A. A. Naqvi*, M. M. Nagadi, O. S.B. Al-Amoudi

*Corresponding author for this work

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

Abstract

Monitoring of elemental composition of structural concrete is required to protect reinforcing steel in concrete against corrosion. Prompt Gamma Neutron Activation Analysis (PGNAA) technique has been used to measure the elemental composition of concrete samples. In this study 2.8 MeV neutron-based PGNAA setup at King Fahd University of Petroleum and Minerals (KFUPM) has been tested for elemental analysis of concrete sample. Later the setup will be used to measure chloride and sulfate ion concentration in concrete samples. Corrosion of reinforcing steel in concrete is believed to be caused by chloride and sulfate ions. In the KFUPM PGNAA facility the prompt gamma rays are produced through capture of thermal neutrons in bulk sample. The sample size, to be used with PGNAA setup, is determined through Monte Carlo simulations. In this study, prompt gamma ray yield from calcium and silicon present in the concrete sample was measured for various thickness of the front moderator of the PGNAA setup. The experimental yield of prompt gamma ray was compared with the results of the Monte Carlo simulations and an excellent agreement has been achieved between the two. The study has shown that the PGNAA technique can be successfully applied for elemental analysis of the concrete samples.

Original languageEnglish
Title of host publicationCross-Disciplinary Applied Research in Materials Science and Technology - Proceedings of the 1st International Meeting on Applied Physics, (APHYS-2003)
PublisherTrans Tech Publications Ltd
Pages33-42
Number of pages10
ISBN (Print)0878499628, 9780878499625
DOIs
StatePublished - 2005

Publication series

NameMaterials Science Forum
Volume480-481
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Keywords

  • 2.8 MeV neutrons
  • Concrete sample
  • Monte Carlo calculations
  • PGNAA

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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