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MSCR RESULTS IN OKLAHOMA KENNETH RAY HOBSON, P.E AUGUST 25, 2011 SEAUPG WEBINAR

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SUMMARY 1.Data 2.Reporting / Rounding 3.Trends 4.Conclusions 5.Excel Macro Function 6.TA Instruments

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DATA ER% = ASTM D 6084, 77 o F, RTFO Temp (C)PGSourceER %R100R3200R diffG*/sind RTFOJnr0.1Jnr3.2Jnr diffMSCR Grade 64.076-28A19598 02.480.010.023.3PG 64-28 E 64.076-28A792.594 03.940.03 -3.1PG 64-28 E 64.076-28A392.592 03.640.03 -3.8PG 64-28 E 64.076-28A197.598 03.280.01 -7.2PG 64-28 E 64.076-28A197.598 02.620.01 0.8PG 64-28 E 64.076-28A795 04.290.02 1.9PG 64-28 E 64.076-28A197.598 02.350.02 8.5PG 64-28 E 64.076-28A49589 13.580.060.05-12.1PG 64-28 E 64.070-28A492.581 4.050.130.12-8.8PG 64-28 E 64.070-28A587.5747233.90.200.216.1PG 64-28 E 64.070-28A195 02.660.05 -0.9PG 64-28 E 64.070-28A492.579804.170.150.13-9.6PG 64-28 E 64.070-28A590716683.520.280.3421.9PG 64-28 E 64.070-28A492.5716854.880.200.2318.0PG 64-28 E 64.070-28A195969512.550.05 5.5PG 64-28 E 64.070-28A1084 030.17 1.2PG 64-28 E 64.064-22A210822.44.044.224.4

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DATA ER% = PG 70-28 Min. 65, PG 76-28 Min. 75 Temp (C)PGSourceER %R100R3200R diffG*/sind RTFOJnr0.1Jnr3.2Jnr diffMSCR Grade 64.064-22A482802.102.3913.6PG 64-22 S 64.064-22A1-301133.283.27-0.3PG 64-22 S 64.064-22A2-201082.513.813.861.5PG 64-22 S 64.064-22A74223453.351.321.9043.8PG 64-22 H 64.064-22A1002-3664.582.142.234.3PG 64-22 S 64.070-28A3906450212.470.540.7845.0PG 64-28 V 64.076-28A3958688-22.880.100.09-12.0PG 64-28 E 64.076-28A197.596972.870.03 -22.9PG 64-28 E 64.076-28A497.58586-22.850.110.10-10.5PG 64-28 E 64.070-28A495 03.980.040.03-16.6PG 64-28 E 64.076-28A79594952.530.050.04-15.8PG 64-28 E 64.064-22A8-301042.224.604.722.6 64.064-22A911-163.292.873.035.6PG 64-22 S 64.064-22A181813.962.182.4713.4PG 64-22 S 64.064-22A1140972.453.834.189.1 64.064-22A74527405.360.831.1841.8PG 64-22 H 64.064-22A2501002.453.824.189.4

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REPORTING / ROUNDING 1.Data in Excel File Reported, Not Rounded 2.Computations Used Full Values AASHTO TP 70-4, 8.1.3. Percent Recovery Data in Red: Vs.

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REPORTING / ROUNDING Percent Recovery Data in Red: 9.1.2. PG Grade to nearest 0.1 o C? Shown as -1.945 by TA Instruments, -2 in spreadsheet

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REPORTING / ROUNDING

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TRENDS Temp (C)PGSourceER %R100R3200R diffG*/sind RTFOJnr0.1Jnr3.2Jnr diffMSCR Grade 64.076-28A19598 02.480.010.023.3PG 64-28 E 64.076-28A792.594 03.940.03 -3.1PG 64-28 E 64.076-28A392.592 03.640.03 -3.8PG 64-28 E 64.076-28A197.598 03.280.01 -7.2PG 64-28 E 64.076-28A197.598 02.620.01 0.8PG 64-28 E 64.076-28A795 04.290.02 1.9PG 64-28 E 64.076-28A197.598 02.350.02 8.5PG 64-28 E 64.076-28A49589 13.580.060.05-12.1PG 64-28 E 64.076-28A3958688-22.880.100.09-12.0PG 64-28 E 64.076-28A197.596972.870.03 -22.9PG 64-28 E 64.076-28A497.58586-22.850.110.10-10.5PG 64-28 E 64.076-28A79594952.530.050.04-15.8PG 64-28 E PG 76-28 = PG 64-28 E

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TRENDS PG 70-28 PG 64-28 E Temp (C)PGSourceER %R100R3200R diffG*/sind RTFOJnr0.1Jnr3.2Jnr diffMSCR Grade 64.070-28A492.581 4.050.130.12-8.8PG 64-28 E 64.070-28A587.5747233.90.200.216.1PG 64-28 E 64.070-28A195 02.660.05 -0.9PG 64-28 E 64.070-28A492.579804.170.150.13-9.6PG 64-28 E 64.070-28A590716683.520.280.3421.9PG 64-28 E 64.070-28A492.5716854.880.200.2318.0PG 64-28 E 64.070-28A195969512.550.05 5.5PG 64-28 E 64.070-28A1084 030.17 1.2PG 64-28 E 64.070-28A3906450212.470.540.7845.0PG 64-28 V 64.070-28A495 03.980.040.03-16.6PG 64-28 E

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TRENDS PG 64-22 PG 64-22 S Temp (C)PGSourceER %R100R3200R diffG*/sind RTFOJnr0.1Jnr3.2Jnr diffMSCR Grade 64.064-22A210822.44.044.224.4 64.064-22A482802.102.3913.6PG 64-22 S 64.064-22A1-301133.283.27-0.3PG 64-22 S 64.064-22A2-201082.513.813.861.5PG 64-22 S 64.064-22A74223453.351.321.9043.8PG 64-22 H 64.064-22A1002-3664.582.142.234.3PG 64-22 S 64.064-22A8-301042.224.604.722.6 64.064-22A911-163.292.873.035.6PG 64-22 S 64.064-22A181813.962.182.4713.4PG 64-22 S 64.064-22A1140972.453.834.189.1 64.064-22A74527405.360.831.1841.8PG 64-22 H 64.064-22A2501002.453.824.189.4

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TRENDS 1.Most PG 70-28s and All PG 76-28s Grade as PG 64-28 E 2. J nr3.2 > 4.0 kPa -1 (4 of 12 PG 64-22) Not PG 64-22 S 3.J nr3.2 < 0.0 kPa -1 (8 of 12 PG 76-28)

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CONCLUSIONS 1.R 3.2 Limit Needed for: PG 70-28 and PG 76-28 - (60 Min. and 80 Min.?) 2.Other PG Grade Data Needed for R 3.2 Limits 3.Do Not Round Computations Except for Limit Comparisons

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EXCEL MACRO FUNCTION Function MSCRGrade(PG As String, TestTemp As Double, Jnr32 As Double, JnrDiff As Double) As String Dim iTestTemp As Double, iJnr32 As Double, iJnrDiff As Double Dim sColdTemp As String, suffix As String Application.Volatile iTestTemp = Round(TestTemp) sColdTemp = Split(PG, "-")(1) iJnr32 = WorksheetFunction.Round(Jnr32, 2) iJnrDiff = WorksheetFunction.Round(JnrDiff, 1) Select Case (True) Case iJnr32 < 0.5 And iJnrDiff <= 75: suffix = "E" Case iJnr32 <= 1 And iJnrDiff <= 75: suffix = "V" Case iJnr32 <= 2 And iJnrDiff <= 75: suffix = "H" Case iJnr32 <= 4 And iJnrDiff <= 75: suffix = "S" Case Else suffix = "NA" End Select If suffix = "NA" Then MSCRGrade = "" Else MSCRGrade = "PG " & iTestTemp & "-" & sColdTemp & " " & suffix End If End Function

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