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Optimization of Tack Coat for HMA Placement (2012) / Chapter Skim
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Pages 4-6

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From page 4...
... A tack coat provides necessary bonding between pavement layers to ensure that they behave as a single system to withstand traffic and environmental stresses. Tack coat is normally applied to an existing pavement surface before a new layer of asphalt concrete is placed.
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From page 5...
... Five types of tack coat materials were each applied at three application rates. Quality of tack coat application was evaluated using the LTCQT, specimens were *
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From page 6...
... minimum laboratorymeasured interface shear strength to provide acceptable field performance. In Task 7, the research team developed instructional materials for a training course for agency and contractor personnel on the function of tack coats and how their proper selection and application affects pavement performance.
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Key Terms

  • tack coat
  • pavement surface
  • existing pavement
  • asphalt concrete
  • diluted asphalt

  • residual amount
  • asphalt emulsion
  • coat material
  • transportation research
  • application rate

  • asphalt binder
  • application rates
  • pavement layer
  • coat application
  • shear strength

  • cement concrete
  • portland cement
  • bond strength
  • residual asphalt
  • pcc pavement

  • hma layer
  • coat materials
  • ing pavement
  • tack coats
  • pavement layers

  • optimum application
  • interface shear
  • interlayer shear


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