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APPENDIX A: MARSHALL COMPACTION METHOD
A-1 Ellipse - 2 Std Dev for Within and Between Lab Variation Source of Data: AASHTO Materials Reference Laboratory Proficiency Sample Program Final Report Issued: August 12, 2004 Participation: 532 Total Laboratories 3 Laboratories Determined to be Invalid 21 Laboratories Determined to be Outliers 508 Total Laboratorires Included in Analysis Sample 41 Sample 42 CV% CV% Average Average (Sample 41) (Sample 42) 3.57 22.61.24 3.52 22.5 1.26 10.5 10.4 1s d2s 5.53 5.58 0.58 1.65 CV% 1s Reproducability (Sample 42)Reproducability (Sample 41) d2s CV% 1s d2s Sa m pl e 42 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 41 and 42 AMRL Hot-Mix Asphalt Design Samples 41 and 42 Sample 41 Percent Air Voids Using the Marshall Apparatus in T245 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 -2 0 2 4 6 8 10 12 -2 0 2 4 6 8 10 12
A-2 Ellipse - 2 Std Dev for Within and Between Lab Variation Source of Data: AASHTO Materials Reference Laboratory Proficiency Sample Program Final Report Issued: August 16, 2005 Participation: 561 Total Laboratories 32 Laboratories Determined to be Invalid 23 Laboratories Determined to be Outliers 506 Total Laboratorires Included in Analysis Sample 43 Sample 44 CV% CV% Average Average (Sample 43) (Sample 44) Percent Air Voids Using the Marshall Apparatus in T245 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 43 1s d2s Sa m pl e 44 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 43 and 44 AMRL Hot-Mix Asphalt Design Samples 43 and 44 Reproducability (Sample 44)Reproducability (Sample 43) d2s CV% 9.1 11.0 1s d2s 5.59 4.64 0.51 1.44 CV% 1s 2.73 20.80.96 2.71 17.1 0.97 0 2 4 6 8 10 0 2 4 6 8 10 12
A-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 17, 2006 Participation: 609 Total Laboratories 3 Laboratories Determined to be Invalid 28 Laboratories Determined to be Outliers 578 Total Laboratorires Included in Analysis Sample 45 Sample 46 CV% CV% Average Average (Sample 45) (Sample 46) 2.63 29.60.94 2.67 28.6 0.93 10.1 10.6 1s d2s 3.30 3.14 0.33 0.94 CV% 1s Reproducability (Sample 46)Reproducability (Sample 45) d2s CV% 1s d2s Sa m pl e 46 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 45 and 46 AMRL Hot-Mix Asphalt Design Samples 45 and 46 Sample 45 Percent Air Voids Using the Marshall Apparatus in T245 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 -1 1 3 5 7 -1 1 3 5 7
