Limiting Damage to Flexible and Composite Pavements due to the Presence of Water Guidelines (2025) / Chapter Skim
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2 RESEARCH APPROACH
Pages 6-9

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Select key terms on the right to highlight them within pages of the chapter.


From page 6...
... Introduction • Purpose – provide guidelines, practices, plans, and specifications for limiting damage to asphalt and composite pavements due to water • Background – factors contributing to distress, impact on pavement performance, readily available information; however, no currently available guide document • Scope – contents of guide document, case studies, design procedures, specifications, construction practices • Audience – design, construction, and maintenance engineers and technicians at state highway and local transportation agencies • Document organization – chapter number, title, and description • How to use this guide and stand-alone application – summary of guide content and summary of functionality of stand-alone application • Related documents 2. Sources of • Surface infiltration Water • Capillary action and vapor movements • Changes in depth to water table • Seepage from high ground • Pavement edge 3.
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From page 7...
... 4. Design • Roadway geometric design Features – Cross-slope – Longitudinal slope – Length of drainage path – Curb and gutter, shoulders • Subsurface drainage – Need for subsurface drainage (e.g., collect and drain water from the surface, remove subsurface water, minimize erosion, intercept water, impact of climate zone, traffic, and subgrade permeability)
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From page 8...
... Rehabilitation • Pavement Treatments – Treatment type, timing, and effectiveness – Pretreatment application requirements (e.g., tack coat, crack sealing) – Techniques for mitigating/addressing reflective cracking in composite pavements and asphalt overlays – Construction considerations • Drainage rehabilitation – Retrofitted edge drains – Shoulder reconstruction (better-draining material)
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From page 9...
... • Takes inputs about specific projects, materials, and drainage parameters. • Provides recommendations on drainage strategies based on user inputs • Provides links to additional guidance.
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Key Terms

  • subsurface drainage
  • composite pavements
  • reflective cracking
  • training materials
  • design procedures

  • design considerations
  • design features
  • material properties
  • training course
  • subgrade treatment

  • additional inputs
  • limiting damage
  • pavements due
  • crack sealing
  • compaction requirements

  • outlined content
  • edge drains
  • mixture design
  • pavement design
  • drainage design

  • concrete construction
  • drainage strategies
  • acceptance testing
  • base material
  • shoulder design

  • transportation research
  • design include
  • drainage parameters
  • joint compaction
  • material types


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