This course provides an overview of Hot Mix Asphalt, mix design and verification testing, and TDOT Mix related specifications.
Who is required to have this course?
- Each mix design submitted by the contractor must be prepared and signed by a certified TDOT Asphalt Mix Design. (TDOT Specification 407.03.C.1)
- TDOT Materials and Tests employees that will be conducting verification testing for mix designs.
- In general this specification is not required for TDOT Operations personnel
Scope of Course
- AASHTO T 2 - Standard Practice for Sampling Aggregates
- AASHTO T 11 - Materials Finer than No. 200 Sieve in Mineral Aggregates by Washing.
- AASHTO T 27 - Sieve Analysis of Fine and Coarse Aggregates
- AASHTO T 84 - Specific Gravity and Absorption of Fine Aggregate
- AASHTO T 85 - Specific Gravity and Absorption of Coarse Aggregate
- AASHTO T 166 - Bulk Specific Gravity of Compacted Bituminous Mixtures Using Saturated Surface-Dry Specimens
- AASHTO T 176 - Plastic Fines in Graded Aggregates and Soils by Use of the Sand Equivalent Test
- AASHTO T 209 - Theoretical Maximum Specific Gravity and Density of Bituminous Paving Mixtures
- AASHTO T 245 - Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus
- AASHTO T 248 - Reducing Samples of Aggregate to Testing Size
- AASHTO T 304 - Uncompacted Void Content of Fine Aggregate
- AASHTO T 308 - Determining the Asphalt Binder Content of Hot Mix Asphalt (HMA) by the Ignition Method
- AASHTO TP 4 - Standard Method for Preparing and Determining the Density of Hot Mix Asphalt (HMA) Specimens by means of teh Superpave Gyratory Compactor
- ASTM D 4867 - Standard Test Method for Effect of Moisture on Asphalt Concrete Paving Mixture
- ASTM D 4791 - Standard Test Method for Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate
- TDOT Test Method for Glassy Particles in Slag
- TDOT Test Method for Fractured Face Count for Marshall Mixes
- TDOT Test Method for Loss on Ignition for Surgace Mixes
- TDOT Test Method for Ten Minute Boil Test for Anti-Stripping Dosage Rate
TDOT Employees
- Completion of Hot Mix Asphalt QA/C Level 1 and Level 2
- Minimum of 1 year with the Department
- Supervisor's approval and written recommendation that employee is:
- Has general knowledge of asphalt mix laboratory testing
- Familiarity with applicable TDOT Standard Specifications
- Has a need to be certified as an Asphalt Mix Design Technician
Certification Requirement
TDOT will grant a 5 year certification only to those applicants who meet the following requirements:
- Attendance of the 4-Day Course in its entirety
- Successful completion of a 4 hour maximum examination with a passing score of 70% or above. (The exam is OPEN book)
- Successful Lab Demonstration for Regional Materials and Tests Personnel
615-350-4158
