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TRB's National Cooperative Highway Research Program (NCHRP) Web-Only Document 114: Precision Estimates for AASHTO Test Method T 269 Determined Using AASHTO Materials Reference Laboratory (AMRL) Proficiency Sample Data explores the use of data from the AMRL Proficiency Sample Program (PSP) to update precision estimates for the American Association of State Highway and Transportation Officials (AASHTO) Standard Test Method T269, Percent Air Voids in Compacted Dense and Open Asphalt Mixtures.

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2007. Precision Estimates for AASHTO Test Method T 269 Determined Using AMRL Proficiency Sample Data. Washington, DC: The National Academies Press. https://doi.org/10.17226/23157.

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Publication Info

8.5 x 11 |  DOI: https://doi.org/10.17226/23157
Chapters skim
Front Matter i-v
Chapter 1: Introduction and Research Approach 1-3
Chapter 2: Results of Analysis and Estimates of Precision 4-12
Chapter 3: Comparison of Available Precision Estimates 13-13
Chapter 4: Conclusions and Recommendations 14-15
References 16-16
Appendix A: Marshall Compaction Method 17-20
Appendix B: California Kneading Compaction Method 21-24
Appendix C: Gyratory Shear Compaction Method 25-28
Appendix D: Superpave Gyratory Compaction Method 29-32
Appendix E: Precision Statement for AASHTO T269 33-34

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