Algorithm for automatic data interpretation software for concrete slab in impact echo method

D. Sagar, Roszilah Hamid, A. R. Khalim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The commercially available impact echo assessment is effective in assessing flaws in concrete but the evaluation is manual, thus, to evaluate large area by this method is neither practical nor cost effective. In order to enhance the method in application to reinforced concrete slab such as bridge decks, where duration of investigation plays substantial influence on traffic activity, data analysis and interpretation should not only be rapid and objective but also should provide automatic documentation of assessment results straight away at the end of the investigation. This research paper describes a new approach for impact echo method with automatic interpretation of signal through an algorithm. The algorithm detects the defect; calculates its depth and the assessment result is presented in 2D view instantaneously. The algorithm is verified by means of an experimental study, which is conducted with four reinforced concrete slabs incorporating induced delamination, void and honeycombing. A software named Imco@slab is developed based on this algorithm. Finally, a field study over reinforced concrete slab using this software has been conducted and its applicability in practical sense is verified. The field study shows that the discrepancy in assessment by Imco@slab interpretation with hammer tapping method and conventional manual impact echo method is negligible. This software is applicable in assessing delamination and void defects in reinforced concrete slabs.

Original languageEnglish
Pages (from-to)727-746
Number of pages20
JournalMaterials and Structures/Materiaux et Constructions
Volume45
Issue number5
DOIs
Publication statusPublished - May 2012

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Concrete slabs
Reinforced concrete
Delamination
Defects
Bridge decks
Hammers
Concretes
Costs

Keywords

  • Algorithm
  • Automatic interpretation
  • Impact echo method
  • Reinforced concrete slab

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Algorithm for automatic data interpretation software for concrete slab in impact echo method. / Sagar, D.; Hamid, Roszilah; Khalim, A. R.

In: Materials and Structures/Materiaux et Constructions, Vol. 45, No. 5, 05.2012, p. 727-746.

Research output: Contribution to journalArticle

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