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William (Clay) Snyder
Bituminous Chemistry Laboratory Supervisor
Bureau of Materials
Office of Highways Project Implementation
Bituminous Chemistry
Bituminous Chemistry ensures that quality materials are used in highway projects by maintaining a system of sampling, testing, documentation, and reporting of test results for focus areas including: performance graded (PG) asphalt binders, asphalt emulsions, cutback asphalts, and various asphaltic products. Bituminous chemistry also maintains the American Association of State Highway and Transportation Officials (AASHTO) accreditation for PG asphalt binders and emulsified asphalts and manages certification policies and approved lists for PG asphalt binders, asphalt emulsions, and cutback asphalts. Refer to Part II Material Group Details of the Manual for Materials Inspection to determine material requirements.
Policy Memorandums
Clicking the links 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 the links 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 the 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.
Guides/Spreadsheets
There are currently no guides.
Material Specific Information
There is currently no material specific information.
Specifications
Manuals
There is no required training.
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