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Asphalt Design Guide

This design guide is intended to give general structural design and mix type selection guidance for some typical Iowa pavements. It is organized by general purpose, with each use type being addressed on a different page. These guidelines are intended for use in lieu of other guidance or specification. They are not intended to supersede official guidelines or specifications.


View the entire 125 Page Iowa Design Guide in PDF format

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Chapter 2 - Asphalt and Asphalt Paving

  • 2-1 Materials
  • 2-1 Asphalt Defined
  • 2-1 Aggregates
  • 2-4 Asphalt Cement
  • 2-5 Asphalt Concrete
  • 2-6 Cold Mix Asphalt Concrete

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Chapter 3 - Design Considerations

  • 3-1 Fundamentals of Design
  • 3-1 Traffic
    • 3-2 Traffic Classifications
  • 3-4 Soil Support Capability
    • 3-8 Subgrade Classes
  • 3-9 Drainage
  • 3-11 Design Types
  • 3-12 Asphalt Concrete Specifications
    • 3-15 Construction of Asphalt Pavements
    • 3-15 Construction Equipment
    • 3-17 Construction Practices
    • 3-18 Pavement Markings
    • 3-19 Traffic Control Through Work Areas
  • 3-21 Testing and Inspection

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Chapter 4 - Thickness Design

  • 4-1 General Considerations
  • 4-1 Pavement Thickness Design Tables
    • 4-3 Residential Streets
    • 4-4 Collector Streets
    • 4-5 Arterial Streets
    • 4-6 Low Volume Secondary and Rural Roads
    • 4-6 High Volume Secondary and Rural Roads

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Chapter 5 - Parking Lot Design

  • 5-1 General Considerations
    • 5-2 General Planning
  • 5-7 Thickness Design for Parking Lots
    • 5-10 Heavy Loaded Areas
    • 5-10 Industrial Parking Lots
  • 5-11 Asphalt Concrete Curb
    • 5-13 Asphalt Mat-platform for building Construction and Site Paving

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Chapter 6 - Designs for Recreational Uses

  • 6-1 Asphalt Pavements For Non-Vehicular Use
    • 6-2 Bikeways, Golf Cart Paths, Recreation Trails and Walkways
    • 6-4 Pavement Thickness
  • 6-5 Recreational Areas
    • 6-5 Basketball Courts
    • 6-7 Pavement Thickness
  • 6-8 Tennis Courts
    • 6-10 Pavement Thickness
  • 6-11 Asphalt-Rubber Running Tracks

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Chapter 7 - Pavement Management

  • 7-1 Pavement Management Concepts
    • 7-2 Rating a Road
    • 7-2 Interpretation of a Condition Rating
  • 7-4 Pavement Maintenance
    • 7-5 Full-depth Asphalt Patching
    • 7-8 Thin Surface Treatments
  • 7-10 Asphalt Concrete Overlays
    • 7-11 Overlay Thickness Calculations

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Chapter 8 - Rehabilitation

  • 8-1 Recycling Asphalt Pavements
    • 8-3 Breaking and Seating
    • 8-4 Rubblizing
    • 8-5 Paving Fabrics
    • 8-5 Sawcut and Sealing Joints

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Appendix A - Pavement Failure Identification

  • Identifying and Correcting Pavement Failures
  • Types of Pavement Failures

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Appendix C - Conversion Tables

  • Table C-1. Approximate Quantities of Asphalt Concrete Per Square Yard
  • Table C-2. Gallons of Emulsified Asphalt Required Per 100 Linear Feet:
    Various Widths and Rates
  • Table C-3. Tons of material Required Per 100 Linear Feet for Various Widths and Pounds Per Square yard
  • Table C-4. Cubic Yards of Material Per 100 Linear Feet: Various Widths and Depths

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Appendix D - Publications

  • National Asphalt Paving Association Publications
  • The Asphalt Institute Publications
  • Government Publications
 
 
 

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