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Class Schedule

Posted on Friday, August 6, 2021

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

Certification Requirements

  1. TDOT will grant ertificaiton to those applicants who meet both of the following requirements: A pssing grade on both the written and performance examinations.
  2. The written examination is "Closed Book". To pass the written examination a minimum score of 70% is required.
  3. The performance exam is "Closed Book" and requires demonstration of avility to perfrom and describe AASHTO T 11/ASTM C117 and AASHTO T 27/ASTM C 136.
  4. Recertification is necessary every five (5) years by successfully completing the written and performance examinations.

 

The TDOT Concrete Field Testing Technician is an individual who can demostrate the knowledge of and avility 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

Certification Requirements

  1. TDOT will grant certification to those applicants who meet both of the following requirements: A passing grade on both the written and performance examinations.
  2. The written examination is "Closed Book" with test sections on each of the AASHTO/ASTM Standards. To pass the written examination a minimum score of 70% is required.
  3. The performance exam is "Closed Book" and requires demonstration of ability to perform and descibe each of the AASHT/ASTM Stanards listed above.
  4. Recertification is necessary every five (5) years and requires that the technician attend the class and successfully complete the written and performance examinations.

The TDOT Concrete Mix Design Technician is an individual who is responsible for performing all necessary tests and calculations to submit concrete mix designs for approval.

Scope of Course

The program requires a working knowledge of the following:

  • Basic Concrete Ingredients
  • AASHTO R 39/ASTM C192 - Making and Curing Concrete Test Sepcimens in the Laboratory
  • AASHTO T 22/ASTM C39 - Compressive Strength of Cylindrical Concrete Sepcimens

Prerequisites

  • Successful Completion of Concrete Field Testing Technician Course
  • Successful Completion of Concrete Plant Quality Control Technician Course
  • Advanced understanding of concrete testing, placement, inspection, and quality control
  • Advance knowledge of applicable TDOT Standard Specifictaions, Supplemental Specifications, Special Provisions, and Standard Operating Procedures
  • Capable of performing basic mathematic operations (addition, subtraction, multiplication, division, percertages, etc.)

Certification Requirements

  1. TDOT will grant certification to those applicants who have a passing grade on the written examination. The exam is "Closed Book" and a minimum score of 70% or above is required.
  2. Recertification is necessary every five (5) years and requiresthat the technician attend the class and successfully complete the written examination.

 

The TDOT Concrete Plant Quality Control Technician is an individual who is responsible for performing all sampling, testing, and inspection for process control at the concrete plant.

Scope of Course

The program requires a working knowledge of the following:

  • AASHTO T 2/ASTM D75 - Sampling of Aggregates
  • AASHTO R 76/ASTM C702 - Reducing Samples of 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

Prerequistes

  • Successful complete of Concrete Field Testing Technician Course
  • Advanced understanding of concrete testing, placement, and inspection
  • Advance knowledge of applicable TDOT Standard Sepcifications, Supplemental Specifications, Special Provisions, and Standard Operating Procedures
  • Capable of performing basic mathematic operations (for example; addition, subtraction, multiplication, division, percentages, etc.)

Certification Requirements

  1. TDOT will grant certification to those applicants who have a passing grade on the written examination. Tjhe exam is "Closed Book" and a minimum score of 70% or above is required.
  2. Recertification is necessary every five (5) years and requires the technician attend the class and successfully complete the written examination.

 

 

This three-day course is designed to provide both TDOT roadway inspectors and private contractors with a working knowledge and understanding of proper techniques for constructing Hot Mix Asphalt pavements with quality and efficiency according to TDOT specifications.

Scope of Course

The course requires a working knowledge of the following:

  • TDOT Standard Specification 407 - Bituminous Plant Mix Pavements
  • Project Organization and Communication
  • Surface Preparation
  • Hot Mix Asphalt Delivery
  • Hot Mix Asphalt Placement
  • Joint Construction
  • Compaction
  • Density, Quality Control, and Quality Assurance
  • Local Issues, Troubleshooting, and Problem Solving

Prerequistes for TDOT Employees

To successfully complete this certification, employees must possess basic background knowledge of Departmental Practices. Paving, and Mathematics. All employees on a paving project are not required to have the cerification, supervisors and encourage to allow their technician some of the job training on a paving project under the supervision of a certified HMA Roadway Technician prior to enrolling them in the class.

Employees enrolling in this class must meet the minumum requirements:

  • 6 months working with the Department
  • Supervisor's approval and recommendation that employee has a basic understanding of :
    • Departmental Practices
    • HMA Paving
    • Math Including:
      • Basic Arithmetic
      • Order of Operations
      • Percentages

 

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 5-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

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
  • Concrete Field Technician (Part 1) Required Demo (Part 2) - Date to be determined.
  • Concrete Plant Quality Control Technician
  • Concrete Mix Design Technician 

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

  • Radiation Safety & Nuclear Gauge Technician (TDOT ONLY - Must take as 1 exam)
  • Nuclear Gauge Technician (CEI)

 

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