Computers and Concrete

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Determination of homogeneity index of cementitious composites produced with eps beads by image processing techniques

  • Comak, Bekir (Duzce University, Faculty of Engineering, Department of Civil Engineering) ;
  • Aykanat, Batuhan (Duzce University, Faculty of Engineering, Department of Civil Engineering) ;
  • Bideci, Ozlem Salli (Duzce University, Faculty of Art, Design and Architecture, Department of Architecture) ;
  • Bideci, Alper (Duzce University, Faculty of Engineering, Department of Civil Engineering)
  • Received : 2021.02.03
  • Accepted : 2022.02.08
  • Published : 2022.02.25
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Abstract

With the improvements in computer technologies, utilization of image processing techniques has increased in many areas (such as medicine, defence industry, other industries etc.) Many different image processing techniques are used for surface analysis, detection of manufacturing defects, and determination of physical and mechanical characteristics of composite materials. In this study, cementitious composites were obtained by addition of Grounded Granulated Blast-Furnace Slag (GGBFS), Styrene Butadiene polymer (SBR), and Grounded Granulated Blast-Furnace Slag and Styrene Butadiene polymer together (GGBFS+SBR). Expanded Polystyrene (EPS) beads were added to these cementitious composites in different ratios (20%, 40% and 60%). The mechanical and physical characteristics of the composites were determined, and homogeneity indexes of the composites were determined by image processing techniques to determine EPS distribution forms in them. Physical and mechanical characteristics of the produced samples were obtained by applying consistency, density, water absorption, compressive strength (7 and 28 days), flexural strength (7 and 28 days) and tensile splitting strength (7 and 28 days) tests on them. Also, visual examination by using digital microscope, and image analysis by using image processing techniques with open source coded ImageJ program were performed. As a result of the study, it is determined that GGBFS and SBR addition strengthens the adhesion sites formed as it increases the adhesion power of the mixture and helps to get rid of the segregation problem caused by EPS. As a result of the image processing analysis it is demonstrated that GGBFS and SBR addition has positive contribution on homogeneity index.

Keywords

References

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