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228 040 (0,305s)

Result

Quantification of reactive components in sands and gravels by petrographic image analysis (modified RILEM method)

Quantification of reactive components in sands and gravels by petrographic image analysis...

DB - Geologie a mineralogie

  • 2006
  • C
Result

Comparison of quantitative petrographic, stable isotope and cathodoluminescence data for fingerprinting Czech marbles

Various marbles from both historic quarries and historical artefacts of the Czech Republic were examined in order to make determinations of their provenance. The methodology used was based upon a combination of petrographic image

AL - Umění, architektura, kulturní dědictví

  • 2011
  • Jx
  • Link
Result

Petrographic identification of alkali-reactive aggregates in concrete from 20th century bridges

Alkali-silica reaction, identified in number of concrete bridges constructed during the 20th century, was investigated employing microscopic techniques and petrographic image analysis....

JN - Stavebnictví

  • 2009
  • Jx
Result

3-D investigation of rock fabrics by deformation measurement, ultrasonic sounding, neutron difraqction and petrographic image analysis

Laboratory study of elastic anisotropy of rocks subjected to confining stress up to 400 MPa. Identical rock samples were investigated by neutron diffraction method to determine their texture and also by petrographic image analys...

DB - Geologie a mineralogie

  • 2005
  • Jx
Result

Cathodoluminescence microscopy and petrographic image analysis of aggregates in concrete pavements affected by alkali-silica reaction

Various microscopic techniques (cathodoluminescence, polarizing and electron microscopy) were combined with image analysis with the aim to determine a) the modal composition and degradation features within concrete, and b) the p...

DB - Geologie a mineralogie

  • 2012
  • Jx
  • Link
Result

Methodology of analytical study for provenance determination of calcitic, calcite-dolomitic and impure marbles from historical quarries in the Czech Republic

diffraction (XRD), petrographic image analysis (PIA), cathodoluminescence (CL), stable isotope ratio analysis (SIRA), Raman microspectrometry (RM) and bulk magneticThe present provenance study was focused on marbl...

DB - Geologie a mineralogie

  • 2009
  • Jx
Result

Identification of alkali-silica reactive fragments in sands and gravels, using the mortar bar method and gel pat test, modified by petrographic image analysis

Identification of alkali-silica reactive fragments in sands and gravels...

DB - Geologie a mineralogie

  • 2008
  • D
Result

Evaluation of the alkali-silica reactivity potential of sands

The alkali-silica reactivity potential of 20 different Quaternary natural aggregates (sands and gravels) from the Czech Republic has been evaluated by petrographic and dilatometric methods....

JN - Stavebnictví

  • 2009
  • Jx
Result

Microstructure of selected metamorphic rock types - application of petrographic image analysis

Microscopic techniques, such as polarising microscopy and scanning electron microscopy with energy dispersive spectrometer (SEM/EDS), were used in combination with petrographic image analysis with the aim of a quantitative ...

DB - Geologie a mineralogie

  • 2010
  • Jx
Result

Restoration research of the St. John of Nepomuk Statue, Zábřeh in Moravia

Petrographic investigation of the stone using optical microscopy its quantifikative description using image analysis and determination of source locality of the stone (Maletín Sandstone). Presence of retouch and consolidant...

AL - Umění, architektura, kulturní dědictví

  • 1999
  • Vx
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