Scanning Electron Microscopy Method as a Tool for the Evaluation of Selected Materials Microstructure

This paper introduces CDV's research on microstructure evaluation of two selected materials used in pavements or structures, i.e. cement concrete and bitumen. A Scanning Electron Microscope (SEM) has been used as the main equipment. In the case of cement concrete time-dependent changes in the microstructure of self-compacting concrete (SSC) are described. The microstructures and differences in void and pore system of matured SSC with commonly used micro-fillers are also shown here. In the case of bitumen the paper anticipates that the relationship between the composition, structure and usable properties of bitumen have not yet been clarified enough. The SEM method requires an appropriate preparation as the raw bitumen samples can not be watched directly. The oil fraction, precluding the observation, must be eliminated. Nevertheless, its removal may cause a modification of the original structure, and this might consequently have an impact on the results of the observation.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/1802971X
• Authors:
  • POSPISIL, K
  • FRYBORT, A
  • KRATOCHVIL, A
  • MACHACKOVA, J
• Publication Date: 2008

Language

• English

Media Info

• Pagination: 13-20
• Serial:
  • Transactions on Transport Sciences
  • Volume: 1
  • Issue Number: 1
  • Publisher: Czech Ministry of Transport
  • ISSN: 1802-971X
  • Serial URL: https://tots.upol.cz/
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Bitumen; Building materials; Concrete; Construction; General surface features of the earth; Geomorphology; Microscopes; Pavements; Test procedures
• ITRD Terms: 4963: Bitumen; 4755: Concrete; 3655: Construction; 4555: Material (constr); 6790: Microscope; 2955: Pavement; 4076: Structure (geomorphol); 6288: Test method
• Subject Areas: Construction; Highways; Pavements; I30: Materials;

Filing Info

• Accession Number: 01341997
• Record Type: Publication
• Source Agency: Transport Research Centre (CDV)
• Files: ITRD
• Created Date: Jun 14 2011 10:15AM