Construction and Maintenance Practices for Permeable Friction Courses (2009) / Chapter Skim
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Pages 65-70
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From page 65... ...
A similar piece of self-contained equipment (Figure 40) from Japan was reported on for cleaning PFC layers at the meeting of the International Conference on Asphalt Pavements held in Copenhagen, Denmark (65)
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From page 66... ...
stated that it was standard practice by Texas DOT to use seal coats over distresses open-graded surfaces. Corrective Surface Maintenance Occasionally, the PFC layers will require repair of delaminated areas and potholes.
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From page 67... ...
This condition consists of ice building up on the pavement surface due to rain falling on a frozen PFC layer. Finally, snow or sleet falling onto PFC layers is a concern.
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From page 68... ...
indicates that the performance of PFCs is slightly poorer than densegraded surfaces. Snowplows tend to push the slushy material into the void structure of PFC layers.
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From page 69... ...
The New Jersey DOT has found that PFC layers are more difficult to maintain ice-free than nearby dense-grade
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From page 70... ...
Also, the NJGSP continually monitors forecasts of temperature and measures pavement surface temperatures. The NJGSP pre-treats PFC surfaces with liquid magnesium chloride to avoid icing.
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