### Abstract

Original language | English |
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Place of Publication | Espoo |

Publisher | VTT Technical Research Centre of Finland |

Number of pages | 33 |

ISBN (Print) | 951-38-2254-0 |

Publication status | Published - 1985 |

MoE publication type | D4 Published development or research report or study |

### Publication series

Series | Valtion teknillinen tutkimuskeskus. Tiedotteita |
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Number | 437 |

ISSN | 0358-5085 |

### Fingerprint

### Keywords

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

### Cite this

*Image analysis in determining pore size distributions of concrete*. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tiedotteita, No. 437

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*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.

Research output: Book/Report › Report

TY - BOOK

T1 - Image analysis in determining pore size distributions of concrete

AU - Vesikari, Erkki

PY - 1985

Y1 - 1985

N2 - 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.

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

KW - concrete

KW - image analysis

KW - analysis

KW - computer aided data processing

KW - computers, data processing

M3 - Report

SN - 951-38-2254-0

T3 - Valtion teknillinen tutkimuskeskus. Tiedotteita

BT - Image analysis in determining pore size distributions of concrete

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -