Division of Materials and Tests TDOT Certification: Soils and Aggregate Technician Certification
Program Course Title: Soils and Aggregate Certified Testing
Technician Course Certification Level: Grade I
The TDOT Soils and
Aggregate Certified Testing Technician is an individual who has demonstrated
the knowledge of and ability to interpret the results of basic field and
laboratory tests on soils and aggregates as well as perform calculations
necessary to report the data from each test. Scope of Course The program requires a
working knowledge of the following AASHTO/ASTM Standards: AASHTO T 2/ASTM D 75 -
Sampling of Aggregates AASHTO T 248/ASTM C
702 - Reducing Samples of Aggregate to Testing Size AASHTO T 27/ASTM C 136
- Sieve Analysis of Fine and Coarse Aggregates AASHTO T 255/ASTM C
566 - Total Evaporable Moisture Content of Aggregate by Drying AASHTO T 11/ASTM C 117
- Materials Finer Than 75-mm (No. 200) Sieve in Mineral Aggregates by Washing
AASHTO T 19/ASTM C 29
- Bulk Density ("Unit Weight") and Voids in Aggregate 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 AASHTO T 88 - Particle
Size Analysis of Soils AASHTO T 89 -
Determining the Liquid Limit of Soils AASHTO T 99 -
Moisture-Density Relations of Soils Using a 2.5-kg (5.5-lb) Rammer and a
305-mm (12-in.) Drop AASHTO T 180 -
Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a
457-mm (18-in.) Drop AASHTO T 100/ASTM D
854 - Specific Gravity of Soils AASHTO T 224 -
Correction for Coarse Particles in the Soil Compaction Test AASHTO T 265 -
Laboratory Determination of Moisture Content of Soils Supervisor's approval
and written recommendation A basic understanding
of embankment construction and inspection; aggregate testing Familiarity with
applicable TDOT Standard Specifications, Supplemental Specifications, and
Special Provisions Mathematical skills
through basic algebra TDOT will grant
certification to those applicants who meet both of the following
requirements: A passing grade on the
written examination: The one-hour written
examination is "open book" and consists of 55 multiple choice
questions. There are five (5) to ten (10) questions on each of the
AASHTO/ASTM Standards. To pass the written examination, both of the following
conditions must be met: (a) at least 60%
correct for each of the required standards; and (b) a
minimum score of 70% overall. 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:
Soils and Aggregates. This is a study guide for the student
covering information and procedures on the standards and test methods listed
above and other relevant policies, procedures, and information: AASHTO T 2/ASTM D 75 AASHTO T 248/ASTM C
702 AASHTO T 27/ASTM C 136
AASHTO T 255/ASTM C
566 AASHTO T 11/ASTM C 117
AASHTO T 19/ASTM C 29 AASHTO T 84/ASTM C 128 AASHTO T 85/ASTM C 127
AASHTO T 88 AASHTO T 89 AASHTO T 99 AASHTO T 180 AASHTO T 100/ASTM D
854 AASHTO T 224 AASHTO T 265 TDOT Standard
Specifications for Road and Bridge Construction TDOT Supplemental
Specifications TDOT Circular Letters TDOT Aggregate
Approval Process TDOT Material Testing
Schedule TDOT Material Testing
Guide Presentation
slides: Presented in class. Handouts:
Distributed in class. Forms:
Distributed in class. Software:
Distributed in class.
A Valid Photo ID must be presented upon check-in |