SHRP-A-379 traducir

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AI LOAD CELL TRANSDUCER SIGNAL 3421A DATA ACQUISITION CONDITIONER SC-SA rCONTROL UNIT _-- III CHANNEL #1 _ II CHANNEL #8 I LVDT #1 m is CHANNEL#2 CHANNEL #6 LVDT #2 I I -_ • CHANNEL #3 -_- • CHANNEL #7 STEP {THERMISTER #1 I _ • CHANNEL#3 MOTOR [THERMISTER#21 -_ • CHANNEL#4 A I PC21 1 [THERMISTER #31 _'_ • CHANNEL#5 [:::::: BUS DRIVER DATA 1 COLLECTIONJ Figure 4. Schematic of Specimen Alignment Stand 201
Standard Practice for The Laboratory Evaluation of Modified Asphalt Systems AASHTO Designation: PP51 1. SCOPE 1.1 This practice provides procedures for 1) evaluating the use of and the need for modified asphalt binders and paving mixes within the SUPERPAVE @mix design system, 2) for determining whether modified asphalt binders satisfy the Method for Performance-Graded Asphalt MP1 and 3) modified paving mixes satisfy the SUPERPAVE ®mix specification. It utilizes the performance-based asphalt binder and paving mix tests, specifications, and pavement performance prediction developed in the <strong>SHRP</strong> asphalt research program. 1.2 This practice provides procedures for evaluating modified binders and modified paving mixes using performance-based tests and criteria, and for estimating their performance characteristics in pavement service. 1.3 This practice can be used for the evaluation of modified asphalt binders that meet the requirements of MP1, aggregates, paving mixes or any combination of these. The practice has two main topics: modified asphalt binders and modified paving mixes. Distinct evaluation procedures for aggregate modifiers are not covered in this practice. Aggregate modification is covered under the topic of modified paving mixes. 1.4 This practice provides for two distinct treatments of modified asphalt binder. A modified asphalt binder proposed for use in an asphalt concrete pavement may be directly evaluated. Alternatively, a modifier can be combined with a base asphalt cement to produce a modified binder which meets MP1. 1.5 The values stated in SI units are to be regarded as standard. 1.6 This practice may involve hazardous materials, operations, and equipment. It does not purport to address all of the safety problems associated with its use. It is the responsibility of whomever uses this practice to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1 This standard is based on <strong>SHRP</strong> Product P001. 203
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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
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 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: ATHENA TEMPERATURECONTROLLER ii:!i:
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 and 234: 7. TEST PROCEDURE FOR VERIFYING THE
Page 235 and 236: 8. REPORT 8.1 If the grade of the a
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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