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Ruggedness of Laboratory Tests to Assess Cracking Resistance of Asphalt Mixtures (2023)

Chapter: Appendix B: Pavement Structure of the Nine MnRoad Field Sections

« Previous: Appendix A: Performance Data of the Nine MnRoad Field Sections
Page 100
Suggested Citation:"Appendix B: Pavement Structure of the Nine MnRoad Field Sections." National Academies of Sciences, Engineering, and Medicine. 2023. Ruggedness of Laboratory Tests to Assess Cracking Resistance of Asphalt Mixtures. Washington, DC: The National Academies Press. doi: 10.17226/27421.
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Page 100
Page 101
Suggested Citation:"Appendix B: Pavement Structure of the Nine MnRoad Field Sections." National Academies of Sciences, Engineering, and Medicine. 2023. Ruggedness of Laboratory Tests to Assess Cracking Resistance of Asphalt Mixtures. Washington, DC: The National Academies Press. doi: 10.17226/27421.
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Page 101
Page 102
Suggested Citation:"Appendix B: Pavement Structure of the Nine MnRoad Field Sections." National Academies of Sciences, Engineering, and Medicine. 2023. Ruggedness of Laboratory Tests to Assess Cracking Resistance of Asphalt Mixtures. Washington, DC: The National Academies Press. doi: 10.17226/27421.
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Page 102

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B-1 APPENDIX B: PAVEMENT STRUCTURE OF THE NINE MNROAD FIELD SECTIONS Table B-1. Pavement Structure of MnRoad Section Cell 15. Layer No. Type Thickness (in) Description Construction Date 1 SG — Clay Subgrade July 1992 2 AC Layer 11 PG 64-22 HMA July 1992 3 Int. Layer 0.5 Microsurface Aug. 2003 4 Int. Layer 0.5 Microsurface Aug. 2004 5 AC Layer 1.5 PG 58-34 WMA w/ 20% RAP Sept. 2008 6 AC Layer 1.5 PG 58-34 WMA w/ 20% RAP Sept. 2008 Table B-2. Pavement Structure of MnRoad Section Cell 16. Layer No. Type Thickness (in) Description Construction Date 1 SG — Clay Subgrade June 2008 2 Base 7 Sand—Select Blend of Reclaimings June 2008 3 Base 12 MnROAD Gravel Class 3 Aug. 2008 4 Base 12 Recycled PCC Aug. 2008 5 AC Layer 2 PG 58-34 WMA w/ 20% Non-Wear RAP and Evotherm 3G Sept. 2008 6 AC Layer 3 PG 58-34 WMA w/ 20% Wear RAP and Evotherm 3G Sept. 2008 Table B-3. Pavement Structure of MnRoad Section Cell 17. Layer No. Type Thickness (in) Description Construction Date 1 SG — Clay Subgrade June 2008 2 Base 7 Sand—Select Blend of Reclaimings Aug. 2008 3 Base 12 MnROAD Gravel Class 3 Aug. 2008 4 Base 12 Crushed Conc. & Aggregate Blend Sept. 2008 5 AC Layer 2 PG 58-34 WMA w/ 20% Non-Wear RAP and Evotherm 3G Sept. 2008 6 AC Layer 3 PG 58-34 WMA w/ 20% Wear RAP and Evotherm 3G Sept. 2008

B-2 Table B-4. Pavement Structure of MnRoad Section Cell 18. Layer No. Type Thickness (in) Description Construction Date 1 SG — Clay Subgrade June 2008 2 Base 7 Sand—Select Blend of Reclaimings Aug. 2008 3 Base 12 MnROAD Gravel Class 3 Aug. 2008 4 Base 12 RAP Sept. 2008 5 AC Layer 2 PG 58-34 WMA w/ 20% Non-Wear RAP and Evotherm 3G Sept. 2008 6 AC Layer 3 PG 58-34 WMA w/ 20% Wear RAP and Evotherm 3G Sept. 2008 7 AC Layer — Chip Seal July 2014 Table B-5. Pavement Structure of MnRoad Section Cell 20. Layer No. Type Thickness (in) Description Construction Date 1 SG — Clay Subgrade June 2008 2 Base 7 Sand—Select Blend of Reclaimings June 2008 3 Base 12 MnROAD Gravel Class 3 June 2008 4 Base 12 Class 5 Gravel Base June 2008 5 AC Layer 2 PG58-28 WMA w/ 30% Non-Wear RAP Sept. 2008 6 AC Layer 3 PG58-28 WMA w/ 30% Wear RAP Sept. 2008 Table B-6. Pavement Structure of MnRoad Section Cell 21. Layer No. Type Thickness (in) Description Construction Date 1 SG — Clay Subgrade June 2008 2 Base 7 Sand—Select Blend of Reclaimings June 2008 3 Base 12 MnROAD Gravel Class 3 June 2008 4 Base 12 Class 5 Gravel Base June 2008 5 AC Layer 2 PG58-28 WMA w/ 30% Non-Wear RAP Sept. 2008 6 AC Layer 3 PG58-28 WMA w/ 30% Wear RAP Sept. 2008

B-3 Table B-7. Pavement Structure of MnRoad Section Cell 24. Layer No. Type Thickness (in) Description Construction Date 1 SG — Sand Subgrade May 1992 2 Base 4 MnROAD Base Class 6 Sept. 1992 3 AC Layer 3 PG58-28 HMA Aug. 1993 4 Int. Layer 0.5 Slurry Seal Sept. 2005 5 Mill −3 Mill Existing AC Layers June 2008 6 AC Layer 3 PG58-34 WMA w/ 20% wear RAP Oct. 2008 Table B-8. Pavement Structure of MnRoad Section Cell 83. Layer No. Type Thickness (in) Description Construction Date 1 SG — Clay Subgrade Aug. 2007 2 Subbase 24 Clay Aug. 2007 3 Base 8 Gravel—Class 5 Sept. 2007 4 AC Layer 3.5 PG58-34 HMA Oct. 2007 Table B-9. Pavement Structure of MnRoad Section Cell 84. Layer No. Type Thickness (in) Description Construction Date 1 SG — Clay Subgrade Aug. 2007 2 Subbase 24 Clay Aug. 2007 3 Base 9 Gravel—Class 5 Sept. 2007 4 AC Layer 5.5 PG58-34 HMA Oct. 2007

Next: Appendix C: Performance Data of the 40 LTPP Field Sections »
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Cracking and durability issues of asphalt pavements have been primary concerns of departments of transportation the last two decades. Several modes of asphalt pavement cracking exist—fatigue, top-down, reflective, and thermal—and all are influenced by thermal loading, traffic loading, or a combination of both.

NCHRP Web-Only Document 389: Ruggedness of Laboratory Tests to Assess Cracking Resistance of Asphalt Mixtures, from TRB's National Cooperative Highway Research Program, documents existing field validation efforts for these four modes of cracking.

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