Several controlled laboratory studies have shown that air voids (AV) can have a large effect on the performance of asphalt pavements. AVs that are either too high or too low can cause a reduction in pavement life.
The TRB National Cooperative Highway Research Program's NCHRP Web-Only Document 299: Investigating the Relationship of As-Constructed Asphalt Pavement Air Voids to Pavement Performance determines the effect of in-place AVs on the performance of asphalt concrete (AC) pavements.
The document also has supplemental appendices that are available by request to Ed Harrigan. They include data sets for LTPP, Pavement ME Design Validation, MnROAD Validation, and NCAT Validation.
National Academies of Sciences, Engineering, and Medicine. 2021. Investigating the Relationship of As-Constructed Asphalt Pavement Air Voids to Pavement Performance. Washington, DC: The National Academies Press. https://doi.org/10.17226/26219.
Chapters | skim | |
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Front Matter | 1-3 | |
Contents | 4-11 | |
PART I: RESEARCH OVERVIEW | 12-12 | |
Summary | 13-16 | |
Chapter 1: Background | 17-18 | |
Chapter 2: Research Approach | 18-19 | |
Objective and Scope | 18-19 | |
Methodology | 19-37 | |
Analysis | 38-94 | |
Validation of Analysis Methods | 95-131 | |
Chapter 3: Findings and Applications | 132-134 | |
Chapter 4: Conclusions and Suggested Research | 135-137 | |
Chapter 5: User Guide | 138-138 | |
Chapter 6: Implementation Plan | 139-140 | |
References | 141-141 | |
Appendix | 142-142 | |
PART II: USER GUIDE | 143-143 | |
Preface | 144-144 | |
Acknowledgments | 145-146 | |
Background | 147-149 | |
Study Conclusions | 150-152 | |
User Instructions | 153-153 | |
Local Validation | 154-154 | |
Using the Models | 155-177 | |
Regional Analysis Approach | 178-183 | |
Appendix Analysis Method 1 Subgroup Performance Trend Charts | 184-208 |
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