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Hot Mix Asphalt

Hot Mix Asphalt.JPGDevelops and maintains statewide Hot Mix Asphalt (HMA) related policies, procedures and specifications for directing implementation of the statewide HMA mixtures program. Inspects and approves hot mix asphalt plants, maintains approved lists for truck bed release agents, warm mix technologies, and reclaimed asphalt shingle processing facilities. The lab extends AASHTO accreditation to district laboratories through biennial lab inspections and annual sample proficiency testing, performs forensic testing for premature pavement failures as well as dispute resolution testing for pay for performance (PFP) quality management program. HMA is the contact for investigation of field problems and evaluation of new HMA related products and equipment.


Below you will find information regarding the process and how to get materials approved.

Policy Memorandums

Clicking a hot link below will take you directly to the policy memorandum with specific information explaining the process to become a producer/supplier for the material listed in the title.

Laboratory/Field Test Procedures

Clicking a hot link below will take you directly to the test procedure listed in the title. In order for these materials to be approved/qualified they will be tested to the requirements listed in the procedure.


Clicking a hot link below will take you directly to the form listed in the title. These forms are provided as tools to ensure that the correct data is supplied to IDOT when submitting samples.


Below are reference materials to assist in getting materials approved and IDOT guidelines.



The following documents are provided as a tool to assist with identifying materials and/or ensuring that correct data is supplied to IDOT.

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IL Mod. AASHTO T283 Visual Strip Rating Guide

Material Specific Information

There is currently no material specific information


CBM Specifications

Activities involving materials, research, and new products are administered by IDOT's Central Bureau of Materials (CBM). Administration of these activities requires CBM to develop new specifications or revise existing department specifications. Since these activities are under development or are being evaluated, the specifications do not have a wide distribution. In addition, these specifications are a working document and have not been adopted as a statewide standard.

  • Special Provision For Anti-Stripping Additives in Bituminous Mixtures For Extended Life Pavements (CBM)
    Application: Premium HMA anti-strip additive to be used in all Extended Life Pavement Projects and in all projects where hydrated lime is specified.
    Effective Date: 04/03/03
    Revised Date: 01/12/05
    Contact Person: Tom Zehr / Phone: 217/524-7268 / Email: Thomas.Zehr@illinois.gov
  • Superpave Bituminous Concrete Mixtures (Low ESAL), Rubber Modified (CBM)
    Application: For HMA projects containing crumb rubber modified asphalt cement.
    Effective Date: 12/08/03
    Revised Date: Not Applicable
    Contact Person: Tom Zehr / Phone: 217/524-7268 / Email: Thomas.Zehr@illinois.gov



Required technician training is described on the Lake Land College website for:

  • HMA Level I
  • HMA Level II
  • HMA Level III

Contact Us

Brian Hill
(217) 558-1628
HMA Operations Engineer
Bureau of Materials 
Office of Highways Project Implementation

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