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Mixing and Compaction Temperatures of Asphalt Binders in Hot-Mix Asphalt (2010)

Chapter: Appendix A - Responses of Survey on Agency Specifications Regarding Mixing and Compaction Temperatures

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Suggested Citation:"Appendix A - Responses of Survey on Agency Specifications Regarding Mixing and Compaction Temperatures." National Academies of Sciences, Engineering, and Medicine. 2010. Mixing and Compaction Temperatures of Asphalt Binders in Hot-Mix Asphalt. Washington, DC: The National Academies Press. doi: 10.17226/14367.
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Suggested Citation:"Appendix A - Responses of Survey on Agency Specifications Regarding Mixing and Compaction Temperatures." National Academies of Sciences, Engineering, and Medicine. 2010. Mixing and Compaction Temperatures of Asphalt Binders in Hot-Mix Asphalt. Washington, DC: The National Academies Press. doi: 10.17226/14367.
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Suggested Citation:"Appendix A - Responses of Survey on Agency Specifications Regarding Mixing and Compaction Temperatures." National Academies of Sciences, Engineering, and Medicine. 2010. Mixing and Compaction Temperatures of Asphalt Binders in Hot-Mix Asphalt. Washington, DC: The National Academies Press. doi: 10.17226/14367.
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Suggested Citation:"Appendix A - Responses of Survey on Agency Specifications Regarding Mixing and Compaction Temperatures." National Academies of Sciences, Engineering, and Medicine. 2010. Mixing and Compaction Temperatures of Asphalt Binders in Hot-Mix Asphalt. Washington, DC: The National Academies Press. doi: 10.17226/14367.
×
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Page 82
Suggested Citation:"Appendix A - Responses of Survey on Agency Specifications Regarding Mixing and Compaction Temperatures." National Academies of Sciences, Engineering, and Medicine. 2010. Mixing and Compaction Temperatures of Asphalt Binders in Hot-Mix Asphalt. Washington, DC: The National Academies Press. doi: 10.17226/14367.
×
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Page 83
Suggested Citation:"Appendix A - Responses of Survey on Agency Specifications Regarding Mixing and Compaction Temperatures." National Academies of Sciences, Engineering, and Medicine. 2010. Mixing and Compaction Temperatures of Asphalt Binders in Hot-Mix Asphalt. Washington, DC: The National Academies Press. doi: 10.17226/14367.
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Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

A-1 A P P E N D I X A Responses of Survey on Agency Specifications Regarding Mixing and Compaction Temperatures

State/Organization 1. Procedure to determine mixing and compaction temperature for unmodified hot mix asphalt? 2. Procedure to determine mixing and compaction temperature for polymer- modified hot mix asphalt? 3. Procedure to determine mixing and compaction temperature for crumb rubber-modified hot mix asphalt? 4. Procedure to determine mixing and compaction temperature for air blown or chemically-modified asphalt ? 5. Are the same procedures used to determine plant production and laydown temperatures? Comments Alabama Temp/visc curves from supplier; based on A.I. method F° 053< ;rotcartnoc yb teSA/NA/Nnoitadnemmocer s'reilppuS Alaska Mix @ 276-286°F; Compact @ 259-267°F Mix @ 325-335°F; Compact @ 305- 315°F Mix @ 325-335°F; Compact @ 305- 315°F seYA/N 213 T/542 T213 T/542 TsasnakrA seYA/NA/Nnoitadnemmocer reilppuS ; Test for presence/amount of modifier as part of QPL procedure. PG 70-22 & 76-22 w/SB,SBS,SBR Arizona T 245/T 312; Use supplier recommendation If mix temperature >325°F or if compaction temperature > 300°F T 245/T 312; Use supplier recommendation If mix temperature >325°F or if compaction temperature > 300°F Mixing and compaction temperature both @ 325°F T 245/T 312 Set by contractor; <325°F unless higher temperature recommended by supplier & approved by ADOT tlahpsa deifidom rof retemocsiv ekaaH esUseY202 T/94 T202 T/94 T202 T/94 T202 T/94 TainrofilaC seYA/NA/N213 T/542 T213 T/542 TodaroloC ediug a sa desu ylnO213 T/542 TA/Nnoitadnemmocer reilppuS213 T/542 TtucitcennoC seYA/N213 T/542 T213 T/542 T213 T/542 TaibmuloC fO .tsiD rotcartnoc yb teSA/NA/Nnoitadnemmocer reilppuS213 T/542 TerawaleD Florida Set by contractor based on supplier recommendation and contractor experience; ≤315°F Set by contractor based on supplier recommendation and contractor experience; ≤330°F Set by FDOT based on lab and field experience; ≤320°F Set by contractor based on supplier recommendation and contractor's experience Based on experience 542 TaigroeG seYA/NA/Nnoitadnemmocer reilppuS213 T/ seYA/NA/NA/N213 T/542 TiiawaH seYA/NA/Nnoitadnemmocer reilppuSnoitadnemmocer reilppuSohadI Indiana Dense-graded = 300+9°F; Open-graded = 260+9°F Dense-graded = 300+9°F; Open-graded = 260+9°F N/A Must meet appropriate PG spec. Yes PG 58-28, 64-28, 70-28, 64-22, 70-22, 76- 22 Illinois Mix@295 ±5°F; Compact@ A/NA/NF°5± 503@tcapmoC ;F°5± 523@xiMF°5± 592 Supplier recommendation and contractor's experience seYA/Nnoitadnemmocer reilppuSF° 572 @ tcapmoc dna xiMF° 572 @ tcapmoc dna xiMawoI seYA/NA/NF°053< ;noitadnemmocer reilppuSF°053< ;noitadnemmocer reilppuSsasnaK Table A1. NCHRP Project 9-39 survey response.

State/Organization 1. Procedure to determine mixing and compaction temperature for unmodified hot mix asphalt? 2. Procedure to determine mixing and compaction temperature for polymer- modified hot mix asphalt? 3. Procedure to determine mixing and compaction temperature for crumb rubber-modified hot mix asphalt? 4. Procedure to determine mixing and compaction temperature for air blown or chemically-modified asphalt ? 5. Are the same procedures used to determine plant production and laydown temperatures? Comments Kentucky Based on PG grade & supplier recommendation; for PG 64-22 mix@300 ±5°F, compact @ 265 ±5°F Based on PG grade & supplier recommendation; for PG 76-22 mix@340 ±5°F, compact@ 310 ±5°F A/NA/N Maintain temperature @plant within ±15°F of approved temperature based on PG grade; @ plant PG 58-22 & 64-22: min=250°F, max=330°F; PG 70-22: min=300°F, max=350°F; PG 76-22: min=310°F, max=350°F Roadway temp based on PG grade; PG 58- 22 & 64-22: min=230°F, max=330°F; PG 70-22: min=275°F, max=350°F; PG 76-22: min=300°F, max=350°F A/NnoitadnemmocerreilppuSnoitadnemmocerreilppuSnoitadnemmocerreilppuSanaisiuoL Supplier recommendation, but may be adjusted based on ambient temperature, haul distance, etc. Maine AASHTO T 245/T 312 AASHTO T 245/T 312 213T/542TOTHSAAA/N Yes Supplier recommendation may also be used, but may be adjusted based on ambient temp, haul distance, etc. Typical placement tempeerature 275-325°F A/NA/NnoitadnemmocerreilppuS213T/542TOTHSAAdnalyraM Controlled by paving operation based on ambient temperature, haul distance, etc. seYA/N213T/542TOTHSAAnoitadnemmocerreilppuS213T/542TOTHSAAsttesuhcassaM seYnoitadnemmocerreilppuSnoitadnemmocerreilppuSnoitadnemmocerreilppuSnoitadnemmocerreilppuSnagihciM noitadnemmocerreilppuSA/NnoitadnemmocerreilppuSnoitadnemmocerreilppuSatosenniM Supplier recommendation, but may be adjusted based on ambient temperature, haul distance, etc. Mississippi Temperature/viscosity curves from supplier Temperature/viscosity curves from supplier Temperature/viscosity curves from supplier seYA/N Temp/visc curves verified by AASHTO T 316 per 100,000 gallons seYA/NA/NnoitadnemmocerreilppuSnoitadnemmocerreilppuSiruossiM seYnoitadnemmocerreilppuSA/NnoitadnemmocerreilppuSnoitadnemmocerreilppuSanatnoM Suppliers generally use T 245/T 312 with allowance for field adjustment Nebraska AASHTO T 245/T 312 Supplier recommendation NDOR Spec - mix=350°F,compact=325°F seYA/N tlahpsadeifidomnuesutonseoDseYA/NA/NnoitadnemmocerreilppuSA/NadaveN seYA/NA/N213T/542T213T/542TerihspmaHweN seY213T/542TA/NnoitadnemmocerreilppuS213T/542TyesreJweN seYnoitadnemmocerreilppuSA/NnoitadnemmocerreilppuSnoitadnemmocerreilppuSocixeMweN New York T 245/T 312 213T/542TA/NnoitadnemmocerreilppuS Yes North Carolina T 245/T 312 A/NA/NnoitadnemmocerreilppuS PG 64-22 JMF@ 300°F; PG 70-22 JMF@ 315°F; PG 76-22 JMF@ 335°F Mix @ plant within ±15°F of JMF; Roadway temperature within +15 to -25°F of JMF North Dakota T 245/T 312; Supplier recommendation T 245/T 312 seYA/NA/NnoitadnemmocerreilppuS; Table A2. NCHRP Project 9-39 survey response.

State/Organization 1. Procedure to determine mixing and compaction temperature for unmodified hot mix asphalt? 2. Procedure to determine mixing and compaction temperature for polymer- modified hot mix asphalt? 3. Procedure to determine mixing and compaction temperature for crumb rubber-modified hot mix asphalt? 4. Procedure to determine mixing and compaction temperature for air blown or chemically-modified asphalt ? 5. Are the same procedures used to determine plant production and laydown temperatures? Comments A/NA/NnoitadnemmocerreilppuS213T/542TOTHSAAoihO Supplier recommendation, but adjust as needed A/NA/NF°003@tcapmoc,F°523@xiMF°003@tcapmoc,F°523@xiMamohalkO Unmodified- mix @ 305 ± 20°F Compact@ 290°F; Modified- mix @325 ± 20°F Compact @ 300°F seYnoitadnemmocerreilppuSA/NnoitadnemmocerreilppuS213T/542TnogerO Pennsylvania T 245/T 312 noitadnemmocerreilppuSA/NnoitadnemmocerreilppuS Maintain temperature within specification value based on PG grade; NAPA EC-101 PG 52-28 @ 240-300°F; PG 58-28 @ 260- 310°F; PG 64-22 @ 265-320°F; PG 76-22 @ 280-330°F seYA/NA/NA/N213T/542TociRotreuP Rhode Island T 245/T 312 T 245/T 312; <330 °F T 245/T 312; < F°003-582=egnarlacipyTseY213T/542TF°033 seYA/N213T/542T213T/542T213T/542TaniloraChtuoS A/NA/NnoitadnemmocerreilppuS213T/542TatokaDhtuoS Supplier recommendation, but may be increased up to 25°F based on ambient temperature, haul distance, etc. Tennessee T 245/T 312 Supplier recommendation; but ≤340°F Supplier recommendation; but ≤340°F N/A Plant & roadway temperature must be within specified range based on PG Grade PG 64-22 @ 290-320°F; PG 70-22 @ 320- 350°F; PG 76-22 @ 320-350°F; PG 82-22 @ 320-350°F seYnoitadnemmocerreilppuSnoitadnemmocerreilppuSnoitadnemmocerreilppuSnoitadnemmocerreilppuSsaxeT 213T/542ThatU Supplier recommendation, if available; otherwise based on experience N/A Supplier recommendation, if available; otherwise based on experience Items 1 and 2 generally followed by HMA producer, but may be set by contractor; <335 °F A/NA/NnoitadnemmocerreilppuSnoitadnemmocerreilppuStnomreV Supplier recommendation, but may be adjusted based on ambient temperature, haul distance, etc. 213T/542TainigriV T 245/T 312 seYA/NA/N 213T/542TesuyllarenegsreilppuSseYA/NA/NnoitadnemmocerreilppuSnoitadnemmocerreilppuSnotgnihsaW A/NA/NnoitadnemmocerreilppuS213T/542TainigriVtseW Plant & Roadway temperature must be within ±25 °F of the median temperature from AASHTO T 245/T 312 or recommended by supplier Wisconsin Mix @ supplier recommendation; Compact @ 275 ±5 °F Mix @ supplier recommend.ation; Compact @ 275 ±5 °F N/A Mix @ supplier recommendation; Compact @ 275 ±5 °F Supplier recommendation Table A3. NCHRP Project 9-39 survey response.

State/Organization 1. Procedure to determine mixing and compaction temperature for unmodified hot mix asphalt? 2. Procedure to determine mixing and compaction temperature for polymer- modified hot mix asphalt? 3. Procedure to determine mixing and compaction temperature for crumb rubber-modified hot mix asphalt? 4. Procedure to determine mixing and compaction temperature for air blown or chemically-modified asphalt ? 5. Are the same procedures used to determine plant production and laydown temperatures? Comments Wyoming Based on PG Grade Based on PG Grade; PG 64-28 and 70-28 are polymer modified A/NA/N Use supplier recommendation for modified asphalt and AASHTO T312 for unmodified PG 58-28; mix@305, compact@280 PG 64-22; mix@310, compact@285 PG 64- 28; mix@315, compact@290 PG 70- 28; mix@325, compact@300 Army Corps of Engineers ASTM D2493 NAPA EC 101 as function of PG Grade NAPA EC 101 as function of PG Grade NAPA EC 101 as function of PG Grade Yes British Columbia Min. of Transp & Highways (Canada) Temperature/viscosity curves from supplier wonktonoDA/NA/NA/N New Brunswick DOT (Canada) seYnoitadnemmocerreilppuSA/NnoitadnemmocerreilppuSnoitadnemmocerreilppuS Temperatures vary by supplier and PG grade; Mixing ranges from 290-347 °F; Compaction varies from 257-334 °F Danish Road Directorate (Denmark) ASTM D-1559 and experience; Max. temperature legislated ASTM D-1559 and experience; Max. temperature legislated; Max. mixing tempereature=374 F, Max. compact temperature= 365 F seYA/NA/N Maximum temperatures regulated by legislation & Danish Asphalt Industries based on mix type, binder type, etc.; may be lower than by ASTM D-1559 (4.3.1 & 4.3.2) Central Road Research Institute (India) ASTM D2493 Own specifications; Binder @ mixing = 330-365 °F, Mix @ plant = 285-320 °F, Mix @ roadway = 265-300 °F Own specifications; Binder @ mixing = 330-365 °F, Mix @ plant = 285-320 °F, Mix @ roadway = 265-300 °F Own specifications; Binder @ mixing = 330-365 °F, Mix @ plant = 285-320 °F, Mix @ roadway = 265-300 °F Yes Quebec Min. of Transportation (Canada) French Procedure LC 25-007; similar to AASHTO T 245/T 312 T 245/T 312; If temperature corresponding to 0.17 Pa·s is >338 F, use maximum mixing range of 313-338 °F N/A T 245/T 312; If temperature corresponding to 0.17 Pa·s is >338 F, use maximum mixing range of 313-338 °F Yes Saskatchewan Highways and Transp. (Canada) T 245/T 312 Supplier recommendation Based on other agencies and contractor's experience desutlahpsadeifidomelttilyreVseYA/N N. Y. State Thruway Authority T 245/T 312 snoitacificepsTOD.Y.NsesUseYA/NA/NA/N Ontario Min. of Transportation (Canada) Supplier recommendation; T 245 / T 312 Supplier recommendation; T 245 / T 312 Supplier recommendation; T 245 / T 312 Supplier recommendation; T 245 / T 312 213TOTHSAAesusreilppuSseY Table A4. NCHRP Project 9-39 survey response.

State/Organization 1. Procedure to determine mixing and compaction temperature for unmodified hot mix asphalt? 2. Procedure to determine mixing and compaction temperature for polymer- modified hot mix asphalt? 3. Procedure to determine mixing and compaction temperature for crumb rubber-modified hot mix asphalt? 4. Procedure to determine mixing and compaction temperature for air blown or chemically-modified asphalt ? 5. Are the same procedures used to determine plant production and laydown temperatures? Comments Public Works Ministry of Malaysia ASTM D2493; based on experience 275 °F is widely used for compaction temperature Supplier recommendation; ASTM D2493 Supplier recommendation; ASTM D2493 seYA/N Prevalent binder is pen grade 80/100; May also use recommendation from NCHRP Report 459 Manitoba Dept. of Transportation (Canada) seY)ylnotlahpsadezidixO(3942DMTSAA/NnoitadnemmocerreilppuS3942DMTSA Australian Dept. of Transport & Regional Services Optimum mixing = 320-338 °F Maximum compaction = 285-320 °F Optimum mixing = 320-347 °F Maximum compaction = 302-324 °F seYA/NA/N Temperature varies within range given depending on binder class/type. Chinese Transportation Ministry Chinese Method T0619/ T 0625 (Similar to AASHTO T 245/T 312) Heat AC to 325-338 °F; Heat aggregate to 365-428 °F depending on polymer; Maximum temp= 383 °F A/NA/N Placement temperature varies based on binder penetration or modifier; Unmodified minimum=257 °F; Modified minimum=320 °F Compaction temp. varies based on binder penetration or modifier; Start compaction at temperature not less than: Unmodified=248 °F; Modified=302 °F Japan Road Association Similar to AASHTO T245/T 312 but uses temperature at viscosity of 180 ±20 cSt for mixing and temperature at viscosity of 300 ±30 cSt for compaction seYnoitadnemmocerreilppuSnoitadnemmocerreilppuSnoitadnemmocerreilppuS Suppliers compact mix with unmodified binder and determine density. Compact same mix with modified binder over a range of temperatures; determine the temperature that gives same density as unmodified and use as minimum compaction temperature. Add 18 °F to Metric Conversion Note: oC = (oF - 32) * 5/9 Table A5. NCHRP Project 9-39 survey response.

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TRB’s National Cooperative Highway Research Program (NCHRP) Report 648: Mixing and Compaction Temperatures of Asphalt Binders in Hot-Mix Asphalt explores enhanced test methods for determining laboratory mixing and compaction temperatures of modified and unmodified asphalt binders.

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