Division of Materials and Tests

TDOT Certification:

Concrete Technician Certification Program

 

Course Title:  Concrete Mix Design Course

Certification Level:  Grade III

Course Description

The TDOT Concrete Mix Design Technician is an individual who has demonstrated the knowledge and ability to properly perform and record the results of four basic tests on  concrete; perform calculations necessary to report the data from each test; perform calculations necessary to design a concrete mix.

Scope of Course

The program requires a working knowledge of the following AASHTO/ASTM and TDOT Standards:

AASHTO T 126/ASTM C 192 - Making and Curing Concrete Test Specimens in the Laboratory

AASHTO T 22/ASTM C 39 - Compressive Strength of Cylindrical Concrete Specimens

AASHTO T 84/ASTM C 128 - Specific Gravity and Absorption of Fine Aggregate

AASHTO T 85/ASTM C 127 - Specific Gravity and Absorption of Coarse Aggregate

TDOT Standard Specifications for Road and Bridge Construction - Sections 500, 600 and 900

TDOT Supplemental Specifications

Process Control Plans

Concrete Mix Design

Prerequisites

Supervisor's approval and written recommendation

Completion of Concrete Certified Field Testing Technician Course, Level I

Completion of Concrete Plant Quality Control Technician Course, Level II

Familiarity with applicable TDOT Standard Specifications, Supplemental Specifications, and Special Provisions

Mathematical skills through basic algebra

Certification Requirements

TDOT will grant certification to those applicants who meet both of the following requirements:

1) A passing grade on the written examination.

The one-hour written examination is "open book" and consists of 50 multiple choice questions.  To pass the written examination, a minimum score of 70% overall is required.

Recertification is necessary every five (5) years and requires that the technician attend the classes and successfully complete the written and performance examinations.

*NOTE: Cheating on any level WILL ABSOLUTELY NOT BE TOLERATED and will result in immediate expulsion from the course and a notification of supervisors and directors.

The use of cell phone calculators WILL NOT be permitted during exam.

Study Materials

Text:  TDOT Certified Concrete Mix Design Technician - Grade III.  Available online in spring of 2003.

A study guide for the student covering information and procedures on the standards and test methods listed above:  

AASHTO T 126/ASTM C 192

AASHTO T 22/ASTM C 39

AASHTO T 84/ASTM C 128

AASHTO T 85/ASTM C 127

TDOT Standard Specifications for Road and Bridge Construction - Sections 500, 600 and 900

TDOT Supplemental Specifications

Presentation slides:  Presented in class.

Handouts:  Distributed in class.

How to Register

A Valid Photo ID must be presented upon check-in