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Home My WebLink AboutRAM 046 00 Bid Item A26 B7 Temp Curb HMA PG 64-22 - Response046.00 12/22/15 A26, A28, & B7 10 12/22/15 Justin Sencer See Remarks below. 1. Revise and resubmit using WSDOT Form 350-042. 2. Only page 1 of Form 350-042 is needed for A28, Commercial HMA. 3. Clarify if US Oil & Refining or Targa-Sound Terminals is the primary or secondary asphalt binder supplier. 4. The Mix Design Anti-Strip Evaluation Report from Work Order #007999 is not within 1 year of the approval date. A valid mix design verification certification shall be within 1 year of the approval date HMA Mix Design Submittal Contract Number Project Engineer Date DOT Form 350-042 EF Revised 11/2013 State Route Section Region Submitted By Contract Information Asphalt Binder Information Primary Asphalt Binder Supplier Asphalt Binder Specific Gravity (Gb)Asphalt Binder Grade Mixing Temperature Range Compaction Temperature Range Anti-Strip Type Secondary Asphalt Binder Supplier Asphalt Binder Specific Gravity (Gb)Asphalt Binder Grade Mixing Temperature Range Compaction Temperature Range Anti-Strip Type Contractor Aggregate Structure and Aggregate Test Data In the table below provide the "Material" identification (3/4"-0, #4-0, etc.), "Source" (J-199, E-320, etc.), "Ratio" (45%, 20%, etc.), and the percent passing each sieve for each stockpile used in the mix design as well as the combined gradation and the specification requirements for the class of HMA used. Report all stockpile gradations to the nearest tenth of a percent. Report the combined gradation to the nearest whole percent except the U.S. No. 200, which must be reported to the nearest tenth of a percent. Material Source Ratio 1 1/2” Square 1” Square 3/4” Square 1/2” Square 3/8” Square U.S. No. 4 U.S. No. 8 U.S. No. 16 U.S. No. 30 U.S. No. 50 U.S. No. 100 U.S. No. 200 Combined Gradation Specification Requirements Page 1 of 4 HMA Paving Contractor Proposed Pb Proposed Pb HMA Class 3/8 Inch 1/2 Inch 3/4 Inch 1 Inch ESALs (millions)Gyration Levels N Initial:N Design:N Max: Statistical Non Statistical Commercial HMA Evaluation Method RAS to be used in production Yes No % RAP to be used in production Yes No % RAP stockpile tonnage RAS stockpile tonnage *Anti-Strip % *Anti-Strip % * If Required by Contract Contractor’s Aggregate Test Data In the table below provide all of the aggregate specific gravity and aggregate quality property test data determined for each stockpile and the selected design aggregate structure (Combined Gradation) as required. The specification requirements only apply to the design aggregate structure (Combined Gradation). Material Source Ratio Gsb Coarse Gsb Fine Gsb Blend Sand Equiv. Uncompacted Void Content Combined Gradation Primary Asphalt Binder Proposal 45 Min. <3m ESALs, 40 Minimum >3m ESALs, 44 Minimum 90% MinimumCoarse Fracture DOT Form 350-042 EF Revised 11/2013 Page 2 of 4 # Fractured Faces, Single or Double (Must circle one.) Remarks Contractor’s Hamburg Wheel-Track Device (HWTD) and Indirect Tensile Strength (IDT) Test Data (If Required by Contract) In the table below provide the rut depth (mm) and Stripping Inflection Point (Pass/Fail) in accordance with WSDOT FOP for AASHTO T 324, and Indirect Tensile Strength (psi) by performing WSDOT FOP for ASTM D 6931. Secondary Asphalt Binder Proposal Specification Requirements Hamburg Wheel-Track Testing (mm) Stripping Inflection Point Pass Indirect Tensile Strength Test (psi) DOT Form 350-042 EF Revised 11/2013 Page 3 of 4 Additional Information for High RAP and/or RAS HMA Mix Designs (If Applicable) In the tables below, provide the required information for HMA mix designs containing > 20% Recycled Asphalt Pavement (RAP) and/or any amount of Recycled Asphalt Shingles (RAS). Testing shall be performed in accordance with AASHTO R 29 to establish a true grade for each asphalt component and the final blend. HMA mix designs that contain higher levels of RAP and/or any amount of RAS will not be accepted for verification testing at the State Materials Laboratory without the information completed below. Warm Mix Asphalt (WMA) mix designs will not be accepted with > %20 RAP and/or any amount of RAS. Grade of Virgin Asphalt Binder (PGAB)Pb Virgin Asphalt Binder (PGAB) by Wt of Mix Pb of RAP Recycling Agent % Recycling Agent by Wt. of Binder Pb of RAS % Asphalt Binder Contributed from RAP by Wt. of Mix % Asphalt Binder Contributed from RAS by Wt. of Mix % Total Quantity Asphalt Binder Contributed from RAP & RAS by Wt of Mix (40%) max Original High Temp, DSR, kPA Rolling Thin Film Oven High Temp, DSR, kPA Pressure Aging Vessel @ 100 C Int. Temp, DSR, kPA Pressure Aging Vessel @ 100 C Low Temp, BBR, Stiffness, MPa Pressure Aging Vessel @ 100 C Low Temp, BBR, m-value, MPa Property RAP Tc RAS Tc Lab Blend Test Data Lab Blend Specification Virgin PGAB Test data min 1.00 min 2.20 max 5000 max 300 min 0.300 Virgin PGAB Test Temp Grade of Virgin Asphalt Binder (PGAB)Pb Virgin Asphalt Binder (PGAB) by Wt of Mix Pb of RAP Recycling Agent % Recycling Agent by Wt. of Binder Pb of RAS % Asphalt Binder Contributed from RAP by Wt. of Mix % Asphalt Binder Contributed from RAS by Wt. of Mix % Total Quantity Asphalt Binder Contributed from RAP & RAS by Wt of Mix (40%) max Original High Temp, DSR, kPA Rolling Thin Film Oven High Temp, DSR, kPA Pressure Aging Vessel @ 100 C Int. Temp, DSR, kPA Pressure Aging Vessel @ 100 C Low Temp, BBR, Stiffness, MPa Pressure Aging Vessel @ 100 C Low Temp, BBR, m-value, MPa Property RAP Tc RAS Tc Lab Blend Test Data Lab Blend Specification Virgin PGAB Test data min 1.00 min 2.20 max 5000 max 300 min 0.300 Virgin PGAB Test Temp Primary Asphalt Supplier Pba RAP Pba RAS Gb RAP Gb RAS Gmm RAP Gmm RAS Pba RAP Pba RAS Gb RAP Gb RAS Gmm RAP Gmm RAS Secondary Asphalt Supplier I certify this HMA job-mix formula (JMF) has been developed in accordance to WSDOT Standard Operating Procedure (SOP) 732 "Volumetric Design for Hot-Mix Asphalt (HMA)". The HMA JMF has been verified in accordance to section 10 of SOP 732 which consist of preparing replicate mixtures containing the selected design aggregate structure at each of the following binder contents: (1) the estimated design binder content, Pb (design); (2) 0.5 percent below Pb (design); (3) 0.5 percent above Pb (design). I am aware, in accordance to Standard Specification 5-04.3(7)A subsection 2, that a response will be provided within 25 calendar days after a complete mix design submittal has been received at the State Materials Laboratory in Tumwater. Printed Name Signature Date Contractor’s HMA Mix Design Data In the table below provide the HMA volumetric mix design data determined by performing WSDOT SOP 732. The Va, VMA, VFA, and Gmb values must be determined from replicate mixtures compacted to the appropriate Ndesign gyration level in accordance to section 8.2 of SOP 732, back calculated values from replicate mixtures compacted to Nmax are not acceptable. HMA Properties Pb % Gmm @ Nini % Gmm @ Ndes (Va) % VMA @ Ndes % VFA @ Ndes Dust / Asphalt Ratio Pbe Gmm Gmb Gse Primary Asphalt Binder +0.5% Pb DesignPb Design-0.5% Pb Design Secondary Asphalt Binder +0.5% Pb DesignPb Design-0.5% Pb Design Contractor’s HMA Mix Design Proposal(s) In the table below provide the HMA volumetric mix design data that comes closest to, or intersects,4.0% Va, from the testing performed via WSDOT SOP 732. This may be the same as the Pb design data from the table above. Also provide the % Gmm data developed from the replicate mixtures compacted to appropriate Nmax gyration level. HMA Properties Pb % Gmm @ Nini % Gmm @ Ndes % VMA @ Ndes % VFA @ Ndes Dust / Asphalt Ratio Pbe Gmm Gmb Gse Primary Asphalt Binder Proposal Secondary Asphalt Binder Proposal % Gmm@ Nmax Specification Requirements 96.0 0.6 - 1.6 < 98.0 Height @ Nini Height @ Ndes Phone DOT Form 350-042 EF Revised 11/2013 Page 4 of 4