Selecting The Right Mix - Asphalt Pavement Association Of Michigan
2016 Local Roads WorkshopSelecting the Right Mix for YourProjectMICHIGAN RIDES ON US
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your Project2937 Atrium Drive, Suite 202Okemos, MI 48864517-323-7800 www.apa-mi.org
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your Project
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your Project
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectFor each there are: Right mixesWrong mixes
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectOutline History Performance Graded Binders MDOT Local Agency Guide NAPA Guide Other Considerations
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectMix History
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectPerformance Mixes (Marshall)1990’s 2B, 2C 3B, 3C 4B, 4C 11A 13, 13A 36A, 36BBasesLevelingTopBase, LevelingBase, Leveling, TopLeveling, Top
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectMarshall Mix Spec
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectMarshall Mix SpecAdditional Requirement for Local Federal Aidprojects:From 10-15-2015 SP 501J local agency HMAacceptance:For all mixtures, field regress air void content to 3.5percent with liquid asphalt cement unless specifiedotherwise on HMA application estimate.
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectMarshall Mix Spec
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectSuperPave Mixes Superpave System– PG Binders (Climate)– Traffic Level– Gyratory Compactor
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectSuperPave Mixes2000’s LVSP, E03, E1, E3, E10,E30, E50 2EO3 thru 5E50
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectSuperPave Mixes2E03:2 Mixture Number (2 thru 5)corresponds to gradation2 Base Mix5 Top Mix
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectSuperPave Mixes2E03:E03 Mixture Typecorresponds to estimated traffic(million BSAL)03 less than 300,000 BSAL
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectSuperPave Mix Specification2012 MDOT Standard Specifications1. Mix Design and Volumetric Requirements Tables 501-1, 2 & 32. Gradation and Aggregate Requirements Tables 902-5 & 63. PG Binder Specification Table 904-2
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectSuperpave Mix Spec
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectSuperpaveMix Spec
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectRegression ofMix design
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectRegression ofMix designEffective Jan. 2015: regress AirVoids to 3% on all MDOT mixes
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectSuperpave Mix Spec
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectMarshall vs. Superpave Mix1. Compaction of mix design samplesa.Marshall Hammerb.Gyratory Compactor2. Aggregate Propertiesram pressure600 kPa3. Mix Design Air Voids150 mm diameter mold1.25 degrees30 gyrationsper minute
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectMarshall vs. Superpave Mix5E4ELVSP13A36A4C1 ½ inch------------------1 inch------------------¾ inch---100100100---100½ inch10090-10075-9575-9510091-1003/8 inch90-100 9060-9060-9092-100 90No. 4 90---45-8045-8065-90 67No. 847-6739-5830-6530-6555-7515-52No. 16------20-5020-50--- 37No. 30------15-4015-4025-45 27No. 50------10-2510-25--- 20No. 100------5-155-15--- 15No. 2002 - 102 - 103-63-63 -103-6
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectPerformance Graded Binders
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectPerformance Graded Binders PG Specification Testing Binder SelectionLocation/Environment Reliability (exceeding High & Low pav’t temp. Traffic level Traffic speed Depth in Pavement Structure
Superpave Asphalt Binder SpecificationThe grading system is based on climatePG 58 - 28PerformanceGradeMin pavementtemperatureAverage 7-day maxpavement temperature
Developed from Air Temperatures Superpave Weather Database– 6500 stations in U.S. and al air temperatures– hottest seven-day temp (avg and std dev)– coldest temp (avg and std dev)Calculated pavement temps used in PGselection 20 yearsLTPP Bind Software
LTPP Bind Software
LTPP Bind Software
Convert to Pavement Temperature Calculated by Superpavesoftware High Temperature (20 mmbelow surface of mixture) Low Temperature (atsurface of mix)
LTPP Bind grams/infrastructure/pavements/ltpp/dwnload.cfm
What Binders are Used in Michigan 76-28P70-22P, 70-28P64-28, 64-34P64-2258-2858-22, 58-34
Binder Grade vs. Pavement PerformanceOther Pavement Performance Factors: Rutting - shear strength of mix, aggregateproperties Fatigue Cracking - pavement structure, traffic What you are paving on!Important Factor: Low temperature Cracking – correlates well tobinder properties
Thermal Cracking
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLocal AgencyHMA Guidehttp://www.michigan.gov/documents/mdot/mdot draft hma selection guidelinesfeb2009 268904 7.pdf
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLocal Agency ProgramsHMA Selection Guidelines Developed for use on Local Agency Projects Reviewed and Approved by CRAM Variations Allowed
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLocal Agency ProgramsHMA Selection Guidelines SuperPave and Marshall mix designs SuperPave for Commercial ADT 700
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLocal Agency ProgramsHMA Selection Guidelines Selection based on Present Day two-waycommercial ADT (Truck traffic) Assumed future growth
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLocal Agency ProgramsHMA Selection GuidelinesCommercialADT0 – 300301 – 700701 – 10001001 – 34003401 – 9999Mixture TypeSurface13A or 36Aor LVSP4C5E15E3 or4E35E10 or4E105E30 or5E10Leveling13A orLVSP3C4E14E34E104E30Base13A2C3E33E103E30
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLocal Agency ProgramsHMA Selection GuidelinesCommercialADT0 – 300301 – 700701 – 10001001 – 34003401 – 9999Binder Grades by RegionSuperiorPG 58-34PG 58-34PG 58-34PG 58-34MetroPG 58-22PG 64-22PG 64-22PG 64-22PG 70-22PAll OtherPG 58-28PG 64-28PG 64-28PG 64-28PG 70-28PFor Surface and Leveling Courses
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLocal Agency ProgramsHMA Selection Guidelines Base Course Binder Selection– Use PG 58-28 for Superior Region– Use PG 58-22 for all other Regions A Base Course is defined as:– All layers below 4” of the surface
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLocal Agency ProgramsHMA Selection Guidelines Target Air Voids– Mixes are specified with 4% design AV– Can be reduced to 3% for 13A and 36A mixes Add a note to the HMA Application Table– Reduce shoulder mixes to 2.5% AV
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLocal Agency ProgramsHMA Selection Guidelines One Course Overlays– Decrease cold temperature number of the PGBinder by one grade
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectBinder SelectionEconomics: Existing Pavement Condition Fix Life Low Temperature Cracking “Protection”
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectBinder SelectionExample: 1 ½” resurfacing of existing road– 98% reliability binder grade is PG 64-28 Consider using PG 64-22 ?– Reflective cracking
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLift Thickness based on NominalMaximum Aggregate Size (NMAS)NMAS – 1 size larger than the first sieve toretain more than 10%
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectNMASEx: 4C mix – NMAS is ½”
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLocal Agency ProgramsHMA Selection GuidelinesMixtureTypeMarshall MixtureSuperpave 30220165Max.#/syd165275500330275410275220Note: Application Rate of 110#/syd. Per 1 inch Thickness
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLift Thickness vs. Performance In-place Density is Critical– Initial In-place Air Voids 8% Lift Thickness Affects Compaction– Consolidation “Room”– Cooling Rate
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectLocal Agency ProgramsHMA Selection Guidelines Aggregate Wear Index– Specified for Surface course mixes– Based on ADT (vehicular and commercial) per laneADT/LaneMinimum AWI 100None100 – 2000220 2000260
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectNAPA Guide
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectWhat’s in the Guide Pavement layers and traffic level definitions General surface preparation recommendations Mix Types– Definitions– Purpose– Materials Procedure for selecting mixes Examples
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectConclusions Selection of Mix for:– Optimum Performance– Economics Binder Selection Economics Lift Thickness vs. Performance
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectExamples New Parking Lot Overlay Low Volume County Road New City Street
Asphalt Pavement Association Of MichiganSelecting the Right Mix for Your ProjectQuestions?www.apa-mi.org517.323.7800 800.292.5959
Asphalt Pavement Association Of Michigan Selecting the Right Mix for Your Project 2937 Atrium Drive, Suite 202 Okemos, MI 48864 517-323-7800 www.apa-mi.org. Asphalt Pavement Association Of Michigan . Mix History. Asphalt Pavement Association Of Michigan Selecting the Right Mix for Your Project
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Asphalt Mix History 1970's 4.11 Bituminous Aggregate Pavement 4.12 9A Binder 25A Leveling/Wearing 31A Wearing. Asphalt Pavement Association Of Michigan Selecting the Right Mix #500 & #700 20C Bases #1100 L & T 20A, 20AA #1300, #1500, #1800 L &T 20AA Stability Mixes 1980's. Asphalt Pavement Association Of Michigan .
Pavement Performance, yrs. Ohio High/Low Asphalt 16 Low Composite 11 High Composite 7 North Carolina ---- Concrete 6 –10 Ontario High Asphalt 8 Illinois Low Asphalt 7 –10 New York ---- Asphalt 5 –8 Indiana Low Asphalt 9 –11 Austria High/Low Asphalt 10 High Concrete 8 Georgia Low Asphalt 10
* ASTM C 33 Table 2 Size Number 501–2.2 CEMENT. Cement shall conform to the requirements of ASTM C 150 Type I, Type II, or Type III. NOTE TO SPECIFIER: The FAA allows the following: ASTM C 150 – Type I, II, III, or IV. ASTM C 595 – Type IP, IS, S, I. Type I, Type II, or Type III cement was used in the Standard Specifications other types may be specified in the Special Provisions. ASTM C .
