Image analysis in determining pore size distributions of concrete

Erkki Vesikari

Research output: Book/ReportReportProfessional

Abstract

An analysing system where modern image analysing techniques and the computer-aided data processing have been utilized is presented. Principles of analysing the air porosity of concrete are described as an example of application. In the analysis the 3-dimensional number-based and volume-based distributions as well as the cumulative presentation of the average distance between pores are determined. Moreover the principles of calculating some characteristic values of porosity are presented. The analysing process consists of three parts corresponding to the progress of the computer programme. 1) Measurement stage where the 2-dimensional number-based distribution of pores is determined by image analysis. 2) Processing stage where the 2-dimensional distribution is transformed into a 3-dimensional distribution. 3) Output stage where the 3-dimensional number-based distribution and some derived distributions are plotted and calculated pore parameters are printed. The analysis proceeds automatically from stage to stage. The total analysis time is about 35 minutes.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages33
ISBN (Print)951-38-2254-0
Publication statusPublished - 1985
MoE publication typeD4 Published development or research report or study

Publication series

NameTiedotteita / Valtion teknillinen tutkimuskeskus
PublisherVTT
Volume437

Fingerprint

Image analysis
Pore size
Porosity
Concretes
Computer program listings
Processing
Air

Keywords

  • analyzing
  • porosity
  • porous materials
  • concrete
  • image analysis
  • analysis
  • computer aided data processing
  • computers, data processing

Cite this

Vesikari, E. (1985). Image analysis in determining pore size distributions of concrete. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tiedotteita, No. 437
Vesikari, Erkki. / Image analysis in determining pore size distributions of concrete. Espoo : VTT Technical Research Centre of Finland, 1985. 33 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 437).
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Vesikari, E 1985, Image analysis in determining pore size distributions of concrete. Valtion teknillinen tutkimuskeskus. Tiedotteita, no. 437, VTT Technical Research Centre of Finland, Espoo.

Image analysis in determining pore size distributions of concrete. / Vesikari, Erkki.

Espoo : VTT Technical Research Centre of Finland, 1985. 33 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 437).

Research output: Book/ReportReportProfessional

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AB - An analysing system where modern image analysing techniques and the computer-aided data processing have been utilized is presented. Principles of analysing the air porosity of concrete are described as an example of application. In the analysis the 3-dimensional number-based and volume-based distributions as well as the cumulative presentation of the average distance between pores are determined. Moreover the principles of calculating some characteristic values of porosity are presented. The analysing process consists of three parts corresponding to the progress of the computer programme. 1) Measurement stage where the 2-dimensional number-based distribution of pores is determined by image analysis. 2) Processing stage where the 2-dimensional distribution is transformed into a 3-dimensional distribution. 3) Output stage where the 3-dimensional number-based distribution and some derived distributions are plotted and calculated pore parameters are printed. The analysis proceeds automatically from stage to stage. The total analysis time is about 35 minutes.

KW - analyzing

KW - porosity

KW - porous materials

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KW - computers, data processing

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BT - Image analysis in determining pore size distributions of concrete

PB - VTT Technical Research Centre of Finland

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ER -

Vesikari E. Image analysis in determining pore size distributions of concrete. Espoo: VTT Technical Research Centre of Finland, 1985. 33 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 437).