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Assessing concrete density using infrared thermographic (IRT) images

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

This paper presents the results of a study conducted to evaluate the possibility of utilizing infrared thermography to assess the quality of concrete. Concrete specimens were prepared with varying water to cement (w/c) ratio, cement content and consolidation effort. The concrete specimens were heated and the IRT images were recorded as they cooled down. The IR thermographs indicated a good variation in the surface temperature with varying concrete composition and consolidation effort. Concrete with similar composition exhibited a greater variation in surface temperature as the consolidation effort was decreased; indicating the presence of less dense structure in the specimens prepared with low consolidation effort. An increase in the water-cement ratio also increases the temperature variation indicating a decrease in the concrete denseness. The variation in cement content also influenced the denseness of concrete as indicated by the enhanced variation in the surface temperature. Concrete specimens with cement content of 300 kg/m 3 (less dense) exhibited a greater temperature variation compared to those prepared with cement content of 400 kg/m 3 (more dense).

Original languageEnglish
Pages (from-to)442-448
Number of pages7
JournalInfrared Physics and Technology
Volume55
Issue number5
DOIs
StatePublished - Sep 2012

Bibliographical note

Funding Information:
Authors acknowledge the Grant provided by King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia, under Project # SB080022, for the conduct of study reported in this paper. The support provided by the Center for Engineering Research is also acknowledged.

Keywords

  • Cement content
  • Consolidation
  • Infrared thermography
  • Portland cement concrete
  • Water to cement ratio

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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