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9.2.2 Calculate the average vertical and horizontal displacements with time using the trimmed mean approach. In other words, the highest and lowest normalized deformation readings in the vertical and horizontal directions are excluded from calculating the average values. The highest and lowest readings are identified by comparing the deformations between 460 and 540 seconds of loading time. For each of these specimens at one temperature, a normalized vertical and horizontal displacement with time is calculated. 9.2.3 Calculate the average ratio between the horizontal and vertical readings with time, which is related to Poisson's ratio, v. specimen. 9.2.4 Calculate the corrected tensile and compressive stresses in the center of the Ox = 11;tavg 2Pavg O avgj]Cox 6 Pavg ] Coy = ;.v-, oh,,] where C_, C_y = Correction factors for the horizontal and vertical stresses, respectively, from table 1. 9.2.5 Calculate the revised Poisson's ratio, v* 1.093 CBx I V* = 1.093 CBx ] o,- o, where CBr, CBx = Correction factors for bulging in the vertical and horizontal directions, respectively, from table 2 9.2.6 Subtract the initial _,from the revised v* E -- v* - v 130
If E is greater than 0.01, substitute v* for v and repeat steps 10.1.4 through 10.1.6. If E is less than or equal to 0.01, proceed with the following steps. 9.2.7 Calculate the tensile strain in the center of the specimen. where: l = gauge length (25.4 or 38.1 mm) 9.2.8 Calculate the compliance at any time, D(t). D(t) - Ex (I x - V*(I Y 9.3 Tensile Strength Calculations 9.3.1 Plot the normalized vertical displacement minus the normalized horizontal displacement as a function of time. A* = Ay -A x 9.3.2 DcfincthetimeatwhichA* peakson oneofthespccimcn'sfaccs.Calculate thetensile strcssattha time.Thistensile stressisthcstrength ofthemix. (It= ax@ tf_l 10. REPORT 10.1 Thc rcportshallincludcthefollowinginformation as a minimum. 10.1.1Thc bulkspccific gravityofeachspecimentested. 10.1.2The maximum spccific gravityoftheasphaltconcrctcmixture. 10.1.3The heightanddiarnctcr ofalltestspecimens. 10.1.4The tcstcmperaturc andloadlevels(forcreeptesting) usedduringthetest. 10.1.5The creepcomplianccvaluesforthetimesspccificd, as a minimum. 131
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SHR -A-379 The SUPERPAVE Mix Design
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Acknowledgments The research descri
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M-003 Determining the Shear and Sti
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Introduction This volume of the Fin
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Table 2. AASHTO and Other Test Meth
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T48 Method of Test for Flash and Fi
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10. KEY WORDS Asphalt binder, aspha
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Table 1. Performance-Graded Asphalt
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2.2 ASTM Standards: C802 Conducting
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7. APPARATUS 7.1 Bending Beam Rheom
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7.6 Calibrated Thermometers--Calibr
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11.3 Perform a daily quality contro
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NOTE9.--The specified preload on th
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dG d2 --_ I d __
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CO U_ P z_ MLLI L_O° _ _ _c_ r_ j4
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m) _L wO O_ W _Z _W W_ Z w W_ 0 _ w
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1.4 Maximum bending stress--The max
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Sy = log S(8) + log S(15) + ... log
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Z 1.3 1.2 1.1 , , .... J 1 • '; "
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T240 Test Method for Effect of Heat
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5.2 The complex shear modulus is an
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7. HAZARDS 7.1 Standard laboratory
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9.1.1.2.3 A thermocouple probe shal
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Typically, reliable test results ma
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figure 1 can be generated by gradua
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150 "ZERO" STRAIN VALUE O" STRAIN V
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5.3 For evaluating an asphalt binde
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time. A change in the load signal e
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9.1.1 Load cell--Verify calibration
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11.2 Immediately after demolding, p
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13.1.5 the average failure strain,
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IA A 5,0 I 6 0 86,0 9,5 FILLET O,K.
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--__6_- -_A AL AL _ o 0 _ _ _ "_ f-
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I __;___ i --_'-- :" (_ . /_/Spring
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points within the pressure vessel a
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NOTE7.--Aging temperature in the PA
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13. KEY WORDS Accelerated aging, el
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to temperaturetransducerand te_llpe
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3. SUMMARY OF METHOD 3.1 The paving
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7. PRECAUTIONS 7.1 Solvents should
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9.4 Final Extraction and Recovery 9
Page 87 and 88: Glass Wool Plug Figure 2. Extractio
Page 89 and 90: 5.761 in I.D. 6 holes 3/16 in I.D.
Page 91 and 92: 1/4 I.D. 5 3/4 in I.D. 6 holes 5/16
Page 93 and 94: Polypropylene Cloth Filter I" .....
Page 95 and 96: 114 in I.D. 11 1/4 in I.D. 8 holes
Page 97 and 98: 3. SUMMARY OF TEST METHOD 3.1 A sol
Page 99 and 100: drying should be re-dried. Caution:
Page 101 and 102: 8.16 Clean the funnels, volumetric
Page 103 and 104: Adsorption/Desorption Testing Data
Page 105 and 106: 2.3 ASTM Standards: D 4402 Measurem
Page 107 and 108: 5.6.3 Start time of test; 5.6.4 Spe
Page 109 and 110: 9.1.1 Weigh the aggregate fractions
Page 111 and 112: 11. CALCULATIONS AND INTERPRETATION
Page 113 and 114: 3.1 Test System--The test system is
Page 115 and 116: 4.3 Determine Air Void Content--Det
Page 117 and 118: • vertical displacement of the sp
Page 119 and 120: The following engineering quantitie
Page 121 and 122: the axial actuator is under closed
Page 123 and 124: Figure 2. Platen-Specimen Assembly
Page 125 and 126: Figure 4. Positioning of Vertical a
Page 127 and 128: tO0 © © ....... OT...=.c on A TEM
Page 129 and 130: Standard Method of Test for Determi
Page 131 and 132: 3. SUMMARY OF METHOD 3.1 This test
Page 133 and 134: 6.5.1 For analog strip-chart record
Page 135 and 136: 8. PROCEDURE 8.1 Measure the bulk s
Page 137: movement per minute. Both the horiz
Page 141 and 142: Table 1. Correction Factors for Hor
Page 143 and 144: Figure 2. Specimen Loading Frame wi
Page 147 and 148: 6. APPARATUS 6.1 Environmental Cond
Page 149 and 150: 9.3 Heat or cool the asphalt concre
Page 151 and 152: pressed. Otherwise, measure and rec
Page 153 and 154: 10.7.2.3 Apply a repeated axial com
Page 155 and 156: 11.3.1 Peak Stress (kPa) per load c
Page 157 and 158: 12.1.3 Aggregate Type and Gradation
Page 159 and 160: Specimen Temperature Hi/Lo Limit Pr
Page 161 and 162: i Pressure Differential Gauge /_ 0
Page 163 and 164: I0 0 0 0 0 0 0 0 0 Ooo00 0 0 '_,Oo
Page 165 and 166: " Total Elastic 0 Ei._ 0 121 Plasti
Page 167 and 168: T201 Method of Test for Kinematic V
Page 169 and 170: 6.4.4 One metal spatula or spoon 6.
Page 171 and 172: 11.1.1 Asphalt Binder Grade 11.1.2
Page 173 and 174: D 1561-81a Preparation of Bituminou
Page 175 and 176: After filling, close all containers
Page 177 and 178: l i /l Gmb = . (1) B-Cwhere A = Mas
Page 179 and 180: 8. REPORT 8.1 The report shall incl
Page 181 and 182: 1 RAMP, ..:i!i!iiiii:i:i:i:i:i:i:i:
Page 185 and 186: 3.3 Epoxy Nut to Neutral Axis of Sp
Page 187 and 188: 5.1.6 Cumulative Dissipated Energy
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plot 6.1.11 Plot of Dissipated Ener
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Figure 2. Nut Epoxied to Neutral Ax
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Figure 4. Nut/Block/Screw/LVDT Conn
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0 OO £ m -r"_ mlO 5 10 4 , [ 'T I
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As a minimum, the test system, shou
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With the ink marker, trace diar_.et
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5. CALCULATIONS A_er the specime_ f
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Step Motor L,.._ Loading Rod Swivel
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ATHENA TEMPERATURECONTROLLER ii:!i:
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Standard Practice for The Laborator
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2.2 SHRP Documents B-006 Extraction
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using the same SUPERPAVE ® perform
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must be used with the modifier from
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8.2.3 Sections 8.3 and 8.4 present
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8.8.2 Conditioning and Testing--Car
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9. LABORATORY EVALUATION OF AGGREGA
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shear, volumetric and frequency swe
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12.2 The HMA plant should produce t
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Table 1. Modifier Selection and Cha
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Table 5. Guidelines for Binder Modi
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Standard Practice for Grading or Ve
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6. TEST PROCEDURE FOR GRADING AN UN
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7. TEST PROCEDURE FOR VERIFYING THE
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8. REPORT 8.1 If the grade of the a
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1.4 In order to attain adequate pre
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5.4 Calculate the bulk specific gra
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Standard Practice for Measurement o
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Table 1. Test Matrix for Level 2 Mi
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6. SPECIMEN PREPARATION 6.1 All tes
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Record axial deformation, shear def
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7.3.5 Since the specimen will be su
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NOTE 15.--At each temperature, the
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Table 7. Time Estimate for Level 2
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NOTEA1.2.--This stress-controlled t
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