Asphaltic Concrete
Submittal Procedure 2025

 

GENERAL INFORMATION

All asphalt mix designs shall be submitted to the Kansas City Metro Materials Board (KCMMB) through the submittal forms on the website and approved by KCMMB prior to use. Additionally, all materials proposed for use in asphalt mix designs shall be approved by KCMMB. Such materials include coarse aggregates, fine aggregates, asphalt binders, and antistripping agents. All mix design and material testing shall be performed by a qualified laboratory.

All KCMMB approved mix designs for 2024 will expire on April 1, 2025, even if mixes are used on multi-year construction projects. Mix designs must be resubmitted to KCMMB with updated aggregate qualities to remain an approved KCMMB supplier for 2025. Aggregates shall be sampled and tested after October 1st of the previous year. For mixes with no change to quantities or material sources, mix design testing is only required to be updated every three years, unless a major specification change dictates a mix redesign. For 2025 only, mix designs previously approved by a municipality in 2024 can be submitted to KCMMB with updated aggregate qualities. Documentation shall be provided that the mix design was approved by a KCMMB member municipality, and 2024 would be counted as the first year of approval.

The asphalt mix design form is expected to be published on the website the first week of January 2025. A downloadable spreadsheet has been developed to outline the requirements of the mix design submittal and can be found under “Submittal Info” on the asphalt home page.

KCMMB will review all mix design submittals. Payment for review fees will be required before submittals will be reviewed. A $175 fee per mix design will be assessed if the mix designs are received by February 14th. Mix designs received after February 14th will be assessed a $250 fee. Any mix design requiring approval in less than 10 working days will be assessed a $350 review fee. Supporting documentation for mix designs must be submitted in *pdf format. Mix designs with incomplete tests will be returned without further review of the mix design.

GBA will not review any submittals prior to receiving payment. GBA does not accept credit cards. Please make checks payable to "GBA" and send them to the following address:

Attn: Josh Miller
GBA
9801 Renner Blvd #300
Lenexa, KS  66219

If your company requires an invoice prior to payment, send a request via email for an invoice prior to submittals. If you will be submitting close to the April 1st deadline, please send checks prior to submitting to avoid delays in review.

All mix designs shall be submitted through the website using the Mix Design Submittal Form and must follow the current KCMMB Asphalt Material Specification. All KCMMB asphaltic concrete mix designs shall have a unique mix designation. Any mix design change to a quantity or material source shall require the mix to be resubmitted to KCMMB with a new mix designation. Mix designations shall follow the following format:

Example:      GB25201KCMMBA2

14 Characters

GB – first two characters indicate supplier name (George Butler)

25 – next two characters indicate the first year of approval (2025)

2 – the next character indicates the mix series (100 series for A1, 200 series for A2, 300 series for A3)

01 – next two numbers indicate a unique mix design within the series

KCMMBA2 – quick reference for the mix type (A1, A2, or A3)

MIX DESIGN SUBMITTAL ORDER

  • Complete the Mix Design Submittal Form on the website

  • Attach PDF of Supporting Documentation 

MIX DESIGN SUBMITTAL REQUIREMENTS

Supporting documentation for asphalt mix design submittals shall include names and percentages of all material sources, as well as the following information:

  • Plant Name(s)
  • Mix Type
  • Mix Designation
  • Asphalt Binder
    • Certificate Of Analysis in compliance with AASHTO R 26-01
  • Anti-Stripping Agent
    • Letter from the manufacturer or the manufacturer’s certification containing the recommended dosage in units of percent by weight of total virgin binder.
  • Virgin Aggregate Sources
    • Quality Testing Reports from aggregate supplier
    • Bulk Dry Composite Specific Gravity
    • Composite Absorption
    • Gradation
    • LA Abrasion and Sulfate Soundness (MgSO4) test results if not approved by KDOT or MoDOT.
  • Recycled Aggregate Sources
    • Effective Specific Gravity
    • Gradation
    • Asphalt Content
    • Asphalt Content Correction Constant
    • Sand Ratio
    • If necessary
      • Sand Fraction
      • Specific Gravity Test
      • Absorption Test
      • Fine Aggregate Angularity
  • Composite Mix
    • Resultant Aggregate Composite Specific Gravity
    • Combined Aggregate Blend Gradation
    • Coarse Aggregate Angularity (Fractured/Crushed Particles)
    • Flat & Elongated Particles (5:1)
    • Sand Equivalent
    • Natural Sand Percentage
    • For KCMMB A1 mixes only
      • Percent of Fine Aggregate (minus No. 4) Consisting of Chat, Crushed Sandstone, Crushed Gravel, Crushed Slag, or Crushed Porphyry
      • Percent of Total Aggregate Consisting of Chat, Crushed Sandstone, Crushed Gravel, Crushed Slag, or Crushed Porphyry
  • Superpave Testing
    • Initial Gyrations
    • Design Gyrations
    • Percent of Gmm at Initial Gyration
    • Maximum Theoretical Specific Gravity of Mixture (Gmm at design AC)
    • Bulk Specific Gravity of Mixture (Gmb at design AC)
    • Temperature of the Mixture (°F)
    • Tensile Strength Ratio
    • Design Asphalt Content
    • Design Air Voids
    • Design VMA
    • Design VEA
    • Effective Specific Gravity of Aggregate
    • Dust to Binder Ratio

PRODUCTION SUMBITTAL REQUIREMENTS

Asphalt content of FRAP stockpiles shall be reported during production to KCMMB through the website via the Asphalt Content Submittal form. Asphalt content ignition tests shall be run at the frequency as described in the KCMMB Asphalt Material Specification. Test results shall be submitted within the first 5 business days of the month for production in the previous calendar month.

Please Contact the KCMMB administrators with questions.

Josh Miller
George Butler Associates, Inc.
Tel. 913.577.8254

Lucas Rosenbaum
George Butler Associates, Inc.
Tel. 913.577.8271