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Asphalt Roads Basics

Asphalt Roads Basics. Types of Asphalt Roads. Conventional hot-mix asphalt Produced in a hot plant, laid with a paver, and compacted Called “Plant Mix Pavement” Invert Penetration Gravel road with layer(s) of asphalt sprayed on top Gravel Road with Reclaimed Asphalt Pavement (RAP).

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Asphalt Roads Basics

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  1. Asphalt Roads Basics

  2. Types of Asphalt Roads • Conventional hot-mix asphalt • Produced in a hot plant, laid with a paver, and compacted • Called “Plant Mix Pavement” • Invert Penetration • Gravel road with layer(s) of asphalt sprayed on top • Gravel Road with Reclaimed Asphalt Pavement (RAP)

  3. Conventional Plant Mix Pavement • Produced in Hot Plant • Hauled to job site • Placed by paver • Compacted

  4. Hot Plant

  5. Paving and Compaction

  6. Asphalt Surface Types • Plant mix surface • Uncommon in Wyoming • Usually covered with a surface seal • Open graded friction course • Usually on higher volume WYDOT roads • Called Plant Mix Wearing Course in Wyoming • Chip Seals • Common on state, city and county roads • Invert penetration • Compacted RAP (Reclaimed Asphalt Pavement) • Gray zone between asphalt and gravel road

  7. Plant Mix Pavement

  8. Open Graded Friction Course

  9. Chip Seal – a new one

  10. Chip Seal – an old one

  11. Invert Penetration Asphalt Road

  12. Invert Penetration Asphalt Road

  13. Invert Penetration Asphalt Road

  14. Compacted RAP Asphalt Road

  15. Gravel Road with RAP

  16. Gravel Road with RAP

  17. Gravel Road with RAP

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