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Test Methods for Characterizing Aggregate Shape, Texture, and Angularity (2007) / Chapter Skim
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Pages 1-2

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From page 1...
... Accuracy of the test methods was assessed through statistical analysis of the correlations between the results from these methods with measurements of shape using a digital caliper and visual rankings of surface irregularity and texture by experienced individuals. Analyses of repeatability and reproducibility results were conducted following the guidelines of the American Society of Testing and Materials (ASTM)
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From page 2...
... Similar to the imaging systems, the MRA provides the distribution of shape in an aggregate sample, but it cannot be used for measuring angularity or texture. All these test methods can be used for routine analysis of aggregate characteristics as they require minimal training and provide an easy to use summary of the results.
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Key Terms

  • aggregate characteristics
  • coarse aggregate
  • aggregate shape
  • image analysis
  • aggregate types

  • coarse aggregates
  • fine aggregate
  • lack direct
  • shape analysis
  • visual rankings

  • methods currently
  • step identified
  • ratio shape
  • surface irregularity
  • numerical score

  • manual manipulation
  • shape using
  • methods meets
  • experienced individuals
  • results revealed

  • average indices
  • direct relation
  • cumulative distribution
  • substantial manual
  • limited ability

  • require substantial
  • routine measurements
  • identify analysis
  • evaluated available
  • characterizing aggregate


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