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6O o TEMP = 4C 50 []............. O A TEIVlp = 2OC \ -- k [] TEHP = 4OC 40 \\ III \ ' _ 30 ,/ \_ ',..Oe,. 8:0 I o ', 7- I _ ' f ", 10 / , , ¢ o, ,, Oo , o--L , e ......a _............ [] 0 l0 20 30 40 50 TIPIE, \ seconds Figure 7. Loading for Simple Shear (Constant Height Test) 119
Standard Method of Test for Determining the Creep Compliance and Strength of Modified and Unmodified Hot Mix Asphalt Using Indirect Tensile Loading Techniques <strong>SHRP</strong> Designation: M-0051 I. SCOPE 1.1 This method covers the determination of creep compliance and strength at different loading times using diametral loadings (commonly referred to as indirect tensile testing) for compacted, dense-graded, hot-mixed, hot-laid bituminous mixtures. Indirect tensile testing is used to characterize asphalt concrete mixtures in tension for thermal and fatigue cracking analyses. 1.2 The indirect tensile creep and failure tests are intended for low-temperature characterization (0°C and below) of cylindrical laboratory compacted and/or field-cored asphalt concrete specimens. The primary goal of the test method is to determine the master compliance curve and failure limits (strength, strain or energy) as a function of temperature, which are required inputs into a mechanistic-based low temperature cracking performance prediction model. 1.3 The test method also provides strength information and data required at temperatures less than 20°C to estimate the number of loading cycles to propagate a crack through an asphalt concrete layer in fatigue cracking predictions that use fracture mechanics. 1.4 This method is applicable to dense-graded, hot-mixed, hot-laid asphalt concrete mixtures, as defined by ASTM D 3515 (Bituminous Paving Mixtures, Hot-Mix, Hot-Laid), and may be used on cores recovered from roadways or cylindrical specimens compacted in the laboratory. 1.5 The values of creep compliance and tensile strength determined with this method can be used in linear-elastic and non-linear elastic layered system theories to calculate the low temperature and fatigue cracking potential of asphalt concrete layers subjected to thermal and wheel loadings. 1.6 The values stated in SI units are to be regarded as the standard. _Thisstandardis basedon <strong>SHRP</strong>Product 1022. 121
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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
Page 77 and 78: 13. KEY WORDS Accelerated aging, el
Page 79 and 80: to temperaturetransducerand te_llpe
Page 81 and 82: 3. SUMMARY OF METHOD 3.1 The paving
Page 83 and 84: 7. PRECAUTIONS 7.1 Solvents should
Page 85 and 86: 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: tO0 © © ....... OT...=.c on A TEM
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 and 138: movement per minute. Both the horiz
Page 139 and 140: If E is greater than 0.01, substitu
Page 141 and 142: Table 1. Correction Factors for Hor
Page 143 and 144: Figure 2. Specimen Loading Frame wi
Page 145 and 146: Standard Method of Test for Determi
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
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8. REPORT 8.1 The report shall incl
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1 RAMP, ..:i!i!iiiii:i:i:i:i:i:i:i:
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Standard Method of Test for Determi
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3.3 Epoxy Nut to Neutral Axis of Sp
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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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