Class Schedule

The TDOT Aggregate Technician is an individual who can demonstrate the knowledge of and ability to interpret the results of aggregate tests as well as perform calculations necessary to report the data from each test.

Scope of Course

AASHTO - R 90/ASTM D75 - Sampling of Aggregates

AASHTO - R 76/ASTM C702 - Reducing Samplesof Aggregate to Testing Size

AASHTO - T 255/ASTM C566 - Total Evaporable Moisture Content of Aggregate by Drying

AASHTO - T 11/ASTM C117 - Materials Finer Than 75-mm (No.200) Sieve in Mineral Aggregates by Washing

AASHTO - T 27/ASTM C136 - Sieve Analysis of Fine and Coarse Aggregates

AASHTO - T 84/ASTM C128 - Specific Gravity and Absorption of Fine Aggregate

AASHTO - T 85/ASTM C127 - Specific Gravity and Absorption of Coarse Aggregate

AASHTO - T 104/ASTM C88 - Soundness of Aggregates by Use of Sodium or Mangesium Sulfate

AASHTO - T 96/ASTM C131 - Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine

• May 28, 2025 @ 8:00 AM Central (full)TDOT Region 4 Auditorium

The TDOT Concrete Field Testing Technician is an individual who can demostrate the knowledge of and avalibility to perform concrete field tests for acceptance or quality control.

Scope of Course

• AASHTO T 309/ASTM C1064 - Temperature of Freshly-Mixed Portland Cement Concrete
• AASHTO T 141/ASTM C172 - Sampling Freshly-Mixed Concrete
• AASHTO T 119/ASTM C143 - Slump of Hydraulic Cement Concrete
• AASHTO T 121/ASTM C138 - Unit Weight, Yield, and Air Content (Gravimetric) of Concrete
• AASHTO T 153/ASTM C231 - Air Content of Freshly-Mixed Concrete By the Pressure Method
• AASHTO T 196/ASTM C173 - Air Concrete of Freshly-Mixed Concrete by the Volumetric Method
• AASHTO T 23/ASTM C31 - Making and Curing Concrete Test Specimens in the Field
• ASTM C1611/1621/1758 - Self Consolidating Concrete

• May 29, 2025 @ 8:00 AM Central (full)TDOT Region 4 Auditorium

• January 26 - 29, 2026 begins @ 10 AM Central (full)TDOT Region 3 Auditorium
• February 9-12, 2026, begins @ 10AM Central (30 seats left)TDOT Region 3 Auditorium

Below is a list of our current on-line testing options. During registration you will be asked to choose which exam you want to take.

• Hot Mix Asphalt Roadway Technician Recertification - Open Book

The below two courses are being offered to NEW and Recertifying Technicians as well.

• Radiation Safety & Nuclear Gauge Technician (TDOT ONLY) - Open Book
• Nuclear Gauge Technician (CEI) - Open Book

Registration Tips

• Use the Technicians email address during registration.
• Provide the Technicians cell phone number.
• Use the organizations address (not the Technicians).

Payment Tips

• The credit card owner’s information will pre-populate with the Technicians information. If this is incorrect, please overwrite this information. DO NOT USE any punctuation in these fields.
• IMPORTANT!! The address used for the credit card information MUST match the address on the credit card statement. If a different address is used, the card will be denied.

Exam Session Information

A GOVERNMENT ISSUED PHOTO ID IS REQUIRED AND SHALL BE PROVIDED TO THE PROCTOR PRIOR TO RECEIVING ACCESS TO THE EXAM 

You are required to login to the MS Teams Meeting for the entire exam session. The Session will start promptly @ 9 AM Eastern, 8 AM Central.

Late arrivals will not be accommodated.

• June 12, 2025, beginning @ 9 AM Eastern (8 AM Central) (full)On-Line