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APPENDIX D: SUPERPAVE GYRATORY COMPACTION METHOD
D-1 Ellipse - 2 Std Dev for Within and Between Lab Variation Source of Data: AASHTO Materials Reference Laboratory Proficiency Sample Program Final Report Issued: September 2, 2004 Participation: 392 Total Laboratories 12 Laboratories Determined to be Invalid 22 Laboratories Determined to be Outliers 358 Total Laboratorires Included in Analysis Sample 17 Sample 18 CV% CV% Average Average (Sample 17) (Sample 18) 3.11 16.41.13 3.19 14.2 1.10 7.4 8.8 1s d2s 7.95 6.68 0.59 1.66 CV% 1s Reproducability (Sample 18)Reproducability (Sample 17) d2s CV% 1s d2s Sa m pl e 18 Average Results Graph and Analysis Results for AASHTO T269 Percent Air Voids in Compacted Dense and Open Asphalt Mixtures AMRL Hot-Mix Asphalt Gyratory Samples 17 and 18 AMRL Hot-Mix Asphalt Gyratory Samples 17 and 18 Sample 17 Percent Air Voids Using the Superpave Gyratory Compactor in T312 Repeatability Lines With Small Dash Marks - Sample Outlier Boundaries Lines With Alternating Dash Marks - Sample Medians Line With Large Dash Marks - Center Diagonal Black Hexagon - Data Within is Used for Analysis Graph Legend 0 2 4 6 8 10 12 14 0 2 4 6 8 10 12 14 16
D-2 Ellipse - 2 Std Dev for Within and Between Lab Variation Source of Data: AASHTO Materials Reference Laboratory Proficiency Sample Program Final Report Issued: September 1, 2005 Participation: 434 Total Laboratories 12 Laboratories Determined to be Invalid 26 Laboratories Determined to be Outliers 396 Total Laboratorires Included in Analysis Sample 19 Sample 20 CV% CV% Average Average (Sample 19) (Sample 20) Percent Air voids Using the Superpave Gyratory Compactor in T312 Repeatability Lines With Small Dash Marks - Sample Outlier Boundaries Lines With Alternating Dash Marks - Sample Medians Line With Large Dash Marks - Center Diagonal Black Hexagon - Data Within is Used for Analysis Graph Legend Sample 19 1s d2s Sa m pl e 20 Average Results Graph and Analysis Results for AASHTO T269 Percent Air Voids in Compacted Dense and Open Asphalt Mixtures AMRL Hot-Mix Asphalt Gyratory Samples 19 and 20 AMRL Hot-Mix Asphalt Gyratory Samples 19 and 20 Reproducability (Sample 20)Reproducability (Sample 19) d2s CV% 10.8 11.7 1s d2s 4.55 4.19 0.49 1.39 CV% 1s 2.56 21.60.90 2.55 19.8 0.91 -2 0 2 4 6 8 10 -2 0 2 4 6 8 10
D-3 Ellipse - 2 Std Dev for Within and Between Lab Variation Source of Data: AASHTO Materials Reference Laboratory Proficiency Sample Program Final Report Issued: August 28, 2006 Participation: 480 Total Laboratories 11 Laboratories Determined to be Invalid 33 Laboratories Determined to be Outliers 436 Total Laboratorires Included in Analysis Sample 21 Sample 22 CV% CV% Average Average (Sample 21) (Sample 22) Percent Air Voids Using the Superpave Gyratory Compactor in T312 Repeatability Lines With Small Dash Marks - Sample Outlier Boundaries Lines With Alternating Dash Marks - Sample Medians Line With Large Dash Marks - Center Diagonal Black Hexagon - Data Within is Used for Analysis Graph Legend Sample 21 1s d2s Sa m pl e 22 Average Results Graph and Analysis Results for AASHTO T269 Percent Air Voids in Compacted Dense and Open Asphalt Mixtures AMRL Hot-Mix Asphalt Design Samples 21 and 22 AMRL Sample Type: Samples 21 and 22 Reproducability (Sample 22)Reproducability (Sample 21) d2s CV% 12.0 13.6 1s d2s 2.69 2.37 0.32 0.92 CV% 1s 2.09 31.20.79 2.22 29.2 0.74 -2 0.5 3 5.5 8 -2 0.5 3 5.5 8
