MSCR RESULTS IN OKLAHOMA
KENNETH RAY HOBSON, P.EAUGUST 25, 2011SEAUPG WEBINAR
SUMMARY1. Data2. Reporting / Rounding3. Trends4. Conclusions5. Excel Macro Function6. TA Instruments
DATA
ER% = ASTM D 6084, 77 oF, RTFO
Temp (C) PG Source ER % R100 R3200 R diff G*/sind RTFO Jnr0.1 Jnr3.2 Jnr diff MSCR Grade
64.0 76-28 A1 95 98 98 0 2.48 0.01 0.02 3.3 PG 64-28 E
64.0 76-28 A7 92.5 94 94 0 3.94 0.03 0.03 -3.1 PG 64-28 E
64.0 76-28 A3 92.5 92 92 0 3.64 0.03 0.03 -3.8 PG 64-28 E
64.0 76-28 A1 97.5 98 98 0 3.28 0.01 0.01 -7.2 PG 64-28 E
64.0 76-28 A1 97.5 98 98 0 2.62 0.01 0.01 0.8 PG 64-28 E
64.0 76-28 A7 95 95 95 0 4.29 0.02 0.02 1.9 PG 64-28 E
64.0 76-28 A1 97.5 98 98 0 2.35 0.02 0.02 8.5 PG 64-28 E
64.0 76-28 A4 95 89 89 1 3.58 0.06 0.05 -12.1 PG 64-28 E
64.0 70-28 A4 92.5 81 81 -1 4.05 0.13 0.12 -8.8 PG 64-28 E
64.0 70-28 A5 87.5 74 72 3 3.9 0.20 0.21 6.1 PG 64-28 E
64.0 70-28 A1 95 95 95 0 2.66 0.05 0.05 -0.9 PG 64-28 E
64.0 70-28 A4 92.5 79 80 -1 4.17 0.15 0.13 -9.6 PG 64-28 E
64.0 70-28 A5 90 71 66 8 3.52 0.28 0.34 21.9 PG 64-28 E
64.0 70-28 A4 92.5 71 68 5 4.88 0.20 0.23 18.0 PG 64-28 E
64.0 70-28 A1 95 96 95 1 2.55 0.05 0.05 5.5 PG 64-28 E
64.0 70-28 A10 84 84 0 3 0.17 0.17 1.2 PG 64-28 E
64.0 64-22 A2 1 0 82 2.4 4.04 4.22 4.4
DATA
ER% = PG 70-28 Min. 65, PG 76-28 Min. 75
Temp (C) PG Source ER % R100 R3200 R diff G*/sind RTFO Jnr0.1 Jnr3.2 Jnr diff MSCR Grade
64.0 64-22 A4 8 2 80 2.10 2.39 13.6 PG 64-22 S
64.0 64-22 A1 -3 0 113 3.28 3.27 -0.3 PG 64-22 S
64.0 64-22 A2 -2 0 108 2.51 3.81 3.86 1.5 PG 64-22 S
64.0 64-22 A7 42 23 45 3.35 1.32 1.90 43.8 PG 64-22 H
64.0 64-22 A10 0 2 -366 4.58 2.14 2.23 4.3 PG 64-22 S
64.0 70-28 A3 90 64 50 21 2.47 0.54 0.78 45.0 PG 64-28 V
64.0 76-28 A3 95 86 88 -2 2.88 0.10 0.09 -12.0 PG 64-28 E
64.0 76-28 A1 97.5 96 97 -1 2.87 0.03 0.03 -22.9 PG 64-28 E
64.0 76-28 A4 97.5 85 86 -2 2.85 0.11 0.10 -10.5 PG 64-28 E
64.0 70-28 A4 95 95 95 0 3.98 0.04 0.03 -16.6 PG 64-28 E
64.0 76-28 A7 95 94 95 -1 2.53 0.05 0.04 -15.8 PG 64-28 E
64.0 64-22 A8 -3 0 104 2.22 4.60 4.72 2.6
64.0 64-22 A9 1 1 -16 3.29 2.87 3.03 5.6 PG 64-22 S
64.0 64-22 A1 8 1 81 3.96 2.18 2.47 13.4 PG 64-22 S
64.0 64-22 A11 4 0 97 2.45 3.83 4.18 9.1
64.0 64-22 A7 45 27 40 5.36 0.83 1.18 41.8 PG 64-22 H
64.0 64-22 A2 5 0 100 2.45 3.82 4.18 9.4
REPORTING / ROUNDING1. Data in Excel File Reported, Not
Rounded2. Computations Used Full ValuesAASHTO TP 70-4, 8.1.3.
Percent Recovery Data in Red:
1.0
2.31.0 100RRRRdiff
100110001
diffR 74.81
5969.0100109.05969.0
diffRVs.
REPORTING / ROUNDINGPercent Recovery Data in Red:
9.1.2. PG Grade to nearest 0.1 oC?
286
1008886
diffR 949.1
21.8610089.8721.86
diffR
Shown as -1.945 by TA Instruments, -2 in spreadsheet
REPORTING / ROUNDING
1.0
1.02.3 100JJJJ nrnr
nrdiff
0.003.0
10003.003.0
nrdiffJ
9.220332.0
1000332.00256.0
nrdiffJ
TRENDSTemp (C) PG Source ER % R100 R3200 R diff G*/sind RTFO Jnr0.1 Jnr3.2 Jnr diff MSCR Grade
64.0 76-28 A1 95 98 98 0 2.48 0.01 0.02 3.3 PG 64-28 E
64.0 76-28 A7 92.5 94 94 0 3.94 0.03 0.03 -3.1 PG 64-28 E
64.0 76-28 A3 92.5 92 92 0 3.64 0.03 0.03 -3.8 PG 64-28 E
64.0 76-28 A1 97.5 98 98 0 3.28 0.01 0.01 -7.2 PG 64-28 E
64.0 76-28 A1 97.5 98 98 0 2.62 0.01 0.01 0.8 PG 64-28 E
64.0 76-28 A7 95 95 95 0 4.29 0.02 0.02 1.9 PG 64-28 E
64.0 76-28 A1 97.5 98 98 0 2.35 0.02 0.02 8.5 PG 64-28 E
64.0 76-28 A4 95 89 89 1 3.58 0.06 0.05 -12.1 PG 64-28 E
64.0 76-28 A3 95 86 88 -2 2.88 0.10 0.09 -12.0 PG 64-28 E
64.0 76-28 A1 97.5 96 97 -1 2.87 0.03 0.03 -22.9 PG 64-28 E
64.0 76-28 A4 97.5 85 86 -2 2.85 0.11 0.10 -10.5 PG 64-28 E
64.0 76-28 A7 95 94 95 -1 2.53 0.05 0.04 -15.8 PG 64-28 E
PG 76-28 = PG 64-28 E
TRENDS
PG 70-28 PG 64-28 E
Temp (C) PG Source ER % R100 R3200 R diff G*/sind RTFO Jnr0.1 Jnr3.2 Jnr diff MSCR Grade
64.0 70-28 A4 92.5 81 81 -1 4.05 0.13 0.12 -8.8 PG 64-28 E
64.0 70-28 A5 87.5 74 72 3 3.9 0.20 0.21 6.1 PG 64-28 E
64.0 70-28 A1 95 95 95 0 2.66 0.05 0.05 -0.9 PG 64-28 E
64.0 70-28 A4 92.5 79 80 -1 4.17 0.15 0.13 -9.6 PG 64-28 E
64.0 70-28 A5 90 71 66 8 3.52 0.28 0.34 21.9 PG 64-28 E
64.0 70-28 A4 92.5 71 68 5 4.88 0.20 0.23 18.0 PG 64-28 E
64.0 70-28 A1 95 96 95 1 2.55 0.05 0.05 5.5 PG 64-28 E
64.0 70-28 A10 84 84 0 3 0.17 0.17 1.2 PG 64-28 E
64.0 70-28 A3 90 64 50 21 2.47 0.54 0.78 45.0 PG 64-28 V
64.0 70-28 A4 95 95 95 0 3.98 0.04 0.03 -16.6 PG 64-28 E
TRENDS
PG 64-22 PG 64-22 S
Temp (C) PG Source ER % R100 R3200 R diff G*/sind RTFO Jnr0.1 Jnr3.2 Jnr diff MSCR Grade
64.0 64-22 A2 1 0 82 2.4 4.04 4.22 4.4
64.0 64-22 A4 8 2 80 2.10 2.39 13.6 PG 64-22 S
64.0 64-22 A1 -3 0 113 3.28 3.27 -0.3 PG 64-22 S
64.0 64-22 A2 -2 0 108 2.51 3.81 3.86 1.5 PG 64-22 S
64.0 64-22 A7 42 23 45 3.35 1.32 1.90 43.8 PG 64-22 H
64.0 64-22 A10 0 2 -366 4.58 2.14 2.23 4.3 PG 64-22 S
64.0 64-22 A8 -3 0 104 2.22 4.60 4.72 2.6
64.0 64-22 A9 1 1 -16 3.29 2.87 3.03 5.6 PG 64-22 S
64.0 64-22 A1 8 1 81 3.96 2.18 2.47 13.4 PG 64-22 S
64.0 64-22 A11 4 0 97 2.45 3.83 4.18 9.1
64.0 64-22 A7 45 27 40 5.36 0.83 1.18 41.8 PG 64-22 H
64.0 64-22 A2 5 0 100 2.45 3.82 4.18 9.4
TRENDS1. Most PG 70-28’s and All PG 76-28’s
Grade as PG 64-28 E2. Jnr3.2 > 4.0 kPa-1 (4 of 12 PG 64-22)
• Not PG 64-22 S3. Jnr3.2 < 0.0 kPa-1 (8 of 12 PG 76-28)
CONCLUSIONS1. R3.2 Limit Needed for: PG 70-28 and
PG 76-28 - (60 Min. and 80 Min.?)2. Other PG Grade Data Needed for
R3.2 Limits
3. Do Not Round Computations Except for Limit Comparisons
EXCEL MACRO FUNCTIONFunction 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 IfEnd Function
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