All currently certified CTTP technicians are required to complete the online refresher
course in Basic Aggregates during calendar year 2017. Successful completion of this
online course will result in CTTP certification in Basic Aggregates with an expiration
date of Dec. 31, 2022.
Basic Aggregates certification is a required pre-requisite for many other CTTP certifications.
If the Basic Aggregates Certification Renewal course is not completed by Dec. 31,
2017, the following certifications will no longer be valid:
Concrete Field Testing Technician
Hot Mix Asphalt Testing Technician
Soil Testing Technician
Concrete Strength Testing Technician
There is no fee for the online Basic Aggregates Certification Renewal course. Upon
successful completion, an updated pocket card will be mailed to the technician at
no charge. Pocket cards will be mailed to the company address on file unless otherwise
The Basic Aggregates Certification Renewal course consists of 10 modules and a Final
Quiz. Each module covers an individual test method, and includes a Knowledge Check
(practice questions). The Final Quiz is not available until all 10 modules have been
completed. A minimum score of 70% is required for each Knowledge Check, and a minimum
score of 80% is required for the Final Quiz.