SHRP-A-379 traducir

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46-x or PG 52-x, 100°C for binders having high-temperature grading designations of PG 58-x and higher. A PAV temperature of 110°C is used in simulating desert environments. NOTE 8.--Two BBR beams requiring PAV material are required. In addition, four DT samples may also be needed requiring about 60 g of PAV-conditioned asphalt binder. 7.10 Complete steps 7.1 through 7.9 during the first day of testing. This will allow further testing to begin on the second day, when the PAV procedure is complete. 7.11 At the conclusion of the PAV procedure, carefully remove the residue from the vessel and combine individual pans of the same aged asphalt binder. Prepare two bending beam specimens according to TP1. Retain sufficient residue to prepare four direct tension specimens if required. 7.12 Perform the DSR test (TP5) on the PAV residue at the test temperature specified in table 1 of MP1 indicated for the high-temperature and low-temperature grading designation of the binder being verified. For example, test a PG 64-40 asphalt binder at 16°C. The value for G'sin 6 must not exceed 5000 kPa to meet the requirements of MP1 (note 7). 7.13 Test two BBR specimens according to TP1 at the test temperature specified in table 1 of MP1 indicated for the high temperature and low temperature grading designation of the binder being verified. For example, test a PG 58-28 asphalt binder at -18°C. The value of the slope in must be > 0.300 to meet the requirements of MP1. Certain asphalt binders may satisfy the BBR slope requirement at substantially lower temperatures than they satisfy the BBR stiffness requirement (note 7). 7.14 Determine the extent of physical hardening, report the creep stiffness (S) and the slope (rn) of the log creep stiffness versus log time relationship measured at I hour (conducted above in section 7.13) and 24 hours. Prepare two BBR specimens of original asphalt binder. Condition and test the specimens at the test temperature, selected from table 1 of MP1, appropriate for the performance grade of the asphalt binder. For example, if the binder grade being verified is a PG 64-34 asphalt binder, condition and test the BBR specimens at -24°C. Test one set after 1 hour of conditioning and the second set after 24 hours of conditioning. 7.15 If the creep stiffness is between 300.0 and 600.0 MPa and the slope m is _> 0.300 at the test temperature, it may be possible to satisfy the DT failure strain requirement in lieu of the creep stiffness requirement. Test four DT samples according to TP3 at the same test temperature used to test the BBR specimens. The failure strain must be >_1.0% to meet the requirements of MPI (note 7). 230
8. REPORT 8.1 If the grade of the asphalt binder tested is determined, report the results of all tests performed and the high temperature grading designation determined followed by the low temperature designation (for example: PG 52-34). 8.2 If the grade of an asphalt binder is verified, report the results of all tests performed and if the binder meets the requirements of MP1. 9. KEY WORDS Asphalt binder, performance grading. 231
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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
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Glass Wool Plug Figure 2. Extractio
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5.761 in I.D. 6 holes 3/16 in I.D.
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1/4 I.D. 5 3/4 in I.D. 6 holes 5/16
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Polypropylene Cloth Filter I" .....
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114 in I.D. 11 1/4 in I.D. 8 holes
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3. SUMMARY OF TEST METHOD 3.1 A sol
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drying should be re-dried. Caution:
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8.16 Clean the funnels, volumetric
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Adsorption/Desorption Testing Data
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2.3 ASTM Standards: D 4402 Measurem
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5.6.3 Start time of test; 5.6.4 Spe
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9.1.1 Weigh the aggregate fractions
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11. CALCULATIONS AND INTERPRETATION
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3.1 Test System--The test system is
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4.3 Determine Air Void Content--Det
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• vertical displacement of the sp
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The following engineering quantitie
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the axial actuator is under closed
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Figure 2. Platen-Specimen Assembly
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Figure 4. Positioning of Vertical a
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tO0 © © ....... OT...=.c on A TEM
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Standard Method of Test for Determi
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3. SUMMARY OF METHOD 3.1 This test
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6.5.1 For analog strip-chart record
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8. PROCEDURE 8.1 Measure the bulk s
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movement per minute. Both the horiz
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If E is greater than 0.01, substitu
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Table 1. Correction Factors for Hor
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Figure 2. Specimen Loading Frame wi
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Standard Method of Test for Determi
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6. APPARATUS 6.1 Environmental Cond
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9.3 Heat or cool the asphalt concre
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pressed. Otherwise, measure and rec
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10.7.2.3 Apply a repeated axial com
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11.3.1 Peak Stress (kPa) per load c
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12.1.3 Aggregate Type and Gradation
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Specimen Temperature Hi/Lo Limit Pr
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i Pressure Differential Gauge /_ 0
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I0 0 0 0 0 0 0 0 0 Ooo00 0 0 '_,Oo
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" Total Elastic 0 Ei._ 0 121 Plasti
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T201 Method of Test for Kinematic V
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6.4.4 One metal spatula or spoon 6.
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11.1.1 Asphalt Binder Grade 11.1.2
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D 1561-81a Preparation of Bituminou
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After filling, close all containers
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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:
Page 183 and 184: Standard Method of Test for Determi
Page 185 and 186: 3.3 Epoxy Nut to Neutral Axis of Sp
Page 187 and 188: 5.1.6 Cumulative Dissipated Energy
Page 189 and 190: plot 6.1.11 Plot of Dissipated Ener
Page 191 and 192: Figure 2. Nut Epoxied to Neutral Ax
Page 193 and 194: Figure 4. Nut/Block/Screw/LVDT Conn
Page 195 and 196: 0 OO £ m -r"_ mlO 5 10 4 , [ 'T I
Page 197 and 198: As a minimum, the test system, shou
Page 199 and 200: With the ink marker, trace diar_.et
Page 201 and 202: 5. CALCULATIONS A_er the specime_ f
Page 203 and 204: Step Motor L,.._ Loading Rod Swivel
Page 205 and 206: ATHENA TEMPERATURECONTROLLER ii:!i:
Page 207 and 208: Standard Practice for The Laborator
Page 209 and 210: 2.2 SHRP Documents B-006 Extraction
Page 211 and 212: using the same SUPERPAVE ® perform
Page 213 and 214: must be used with the modifier from
Page 215 and 216: 8.2.3 Sections 8.3 and 8.4 present
Page 217 and 218: 8.8.2 Conditioning and Testing--Car
Page 219 and 220: 9. LABORATORY EVALUATION OF AGGREGA
Page 221 and 222: shear, volumetric and frequency swe
Page 223 and 224: 12.2 The HMA plant should produce t
Page 225 and 226: Table 1. Modifier Selection and Cha
Page 227 and 228: Table 5. Guidelines for Binder Modi
Page 229 and 230: Standard Practice for Grading or Ve
Page 231 and 232: 6. TEST PROCEDURE FOR GRADING AN UN
Page 233: 7. TEST PROCEDURE FOR VERIFYING THE
Page 237 and 238: 1.4 In order to attain adequate pre
Page 239 and 240: 5.4 Calculate the bulk specific gra
Page 241 and 242: Standard Practice for Measurement o
Page 243 and 244: Table 1. Test Matrix for Level 2 Mi
Page 245 and 246: 6. SPECIMEN PREPARATION 6.1 All tes
Page 247 and 248: Record axial deformation, shear def
Page 249 and 250: 7.3.5 Since the specimen will be su
Page 251 and 252: NOTE 15.--At each temperature, the
Page 253 and 254: Table 7. Time Estimate for Level 2
Page 255: NOTEA1.2.--This stress-controlled t
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