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Guidelines for the Preservation of High-Traffic-Volume Roadways (2011) / Chapter Skim
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Appendix B - Examples of Identifying Feasible Preservation Treatments
Pages 47-51

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From page 47...
... Preliminary Feasibility Analysis The existing pavement condition data listed in Table B-1 indicate that there is little structural deterioration and that the vast majority of the deficiencies can be treated through preservation techniques. The overall condition levels -- PCR in the low- to mid-80s -- are such that preventive maintenance techniques and some minor rehabilitation techniques would be appropriate, even after factoring in the reduction expected to occur between 2009 and 2010.
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From page 48...
... EB 0.2 1.0 2.2 WB 0.0 0.3 1.5 IRI (Average ± Std Dev)
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From page 49...
... Double microsurfacing, single- and doublecourse conventional chip seal, single- and double-course polymerized chip seal, thin HMA overlay, cold mill and thin HMA overlay, HIR surface recycling and HMA overlay, HIR remixing and HMA overlay, HIR repaving, and CIR. Treatments appropriate for all four distress types include double microsurfacing, single-course conventional chip seal, ultrathin HMA overlay, and thin HMA overlay.
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From page 50...
... a NB 0 8 15 38 SB 0 2 21 30 Long joint seal damage, (ft/mi) b NB 0 56 287 784 SB 0 108 402 1,026 Trans-joint spalling, LS (joints/mi)
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From page 51...
... Also, the treatment performance and closure duration requirements appear to be satisfied by all four treatments. Hence, based on this analysis, it is reasonable to proceed with a costeffectiveness analysis that includes all four combination treatments.
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Key Terms

  • chip seal
  • thin hma
  • conventional chip
  • seal damage
  • existing pavement

  • bonded wearing
  • condition data
  • ultrathin hma
  • pavement condition
  • feasibility analysis

  • feasibility matrix
  • polymerized chip
  • slurry seal
  • wearing course
  • joint seal

  • diamond grinding
  • final feasibility
  • joint resealing
  • preliminary feasibility
  • locally qualified

  • hir remixing
  • data listed
  • speed limit
  • crack sealing
  • quality materials

  • posted speed
  • course polymerized
  • constraints regarding
  • overall condition
  • traffic conditions


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