Melinda Winkelman
Concrete Lab Supervisor
Bureau of Materials
Office of Highways Project Implementation
Focus areas are testing, acceptance and approval of products such as admixtures, curing compounds, pre-packaged concrete products, freeze-thaw durable aggregates, and other miscellaneous products related to concrete. Other focus areas include research studies regarding concrete applications, and methods of improving concrete quality throughout the state.
Below you will find information regarding the process and how to get materials approved.
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.
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.
Required technician training is described on the Lake Land College website for:
IDOT conducts specialized testing for Alkali-Silica Reactivity (ASR) ASTM C 1293, but also approves external laboratories to perform the test on its behalf.
If you would like to become an approved lab please contact the department for additional instructions.
Melinda Winkelman
Concrete Lab Supervisor
Bureau of Materials
Office of Highways Project Implementation
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.
The following documents are provided as a tool to assist with identifying materials and/or ensuring that correct data is supplied to IDOT.
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.
You can subscribe and receive updates related to Materials Guides and Manuals through IDOT's Subscription Services page.
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Melinda Winkelman
Concrete Lab Supervisor
Bureau of Materials
Office of Highways Project Implementation