DENSITY CONTROL TRAINING COURSE AND CERTIFICATION
This four-day course is designed for technicians and their supervisors who have responsibility
for the density control on soil sub-grade and aggregate bases. The course introduces
the theory of compaction on various materials, and provides training using the common
density control tests, procedures and documentation.
Who should attend
The Michigan Department of Transportation regulations require that all public or private
entities involved in road construction projects on the National Highway System of roads
which are not QC/QA projects shall have a “Certified Density Technician” conducting Density
testing of the materials used on that system.
The Michigan Certified Density Technician program is for field personnel engaged in acceptance testing for local government agencies not using the Quality Control/Quality Assurance specifications. Basic math skills in the use of fractions, decimals, ratios, and percentages are also required.
The Board of Examiners shall administer the examination for certification. The examination
is composed of two parts:
Part 1 - Written examination
The written exam is an open book exam that tests for a basic knowledge of the
characteristics of density, pertaining to soils, aggregates, and bituminous materials.
Part 2 - Practical examination
The practical exam is monitored for competency in completion of the Michigan
Cone, T-99, T-180, Speedy, and Troxler gauge.
Applicants failing any part of the exam will be allowed to retake that portion of
written or practical. However, if an applicant fails a second time, the entire course will
need to be repeated. Options for retaking exams will be explained at the notification of
failure. All retests must be completed within thirty days and participants will be responsible to pay for labor and materials costs associated with re-examination.
Density Control Training Course and Certification
The technician training course is a three-day course followed by the certification
the fourth day. This course is designed to give candidates the skills and knowledge necessary
to pass the Density Control Technician Test. The course is composed of both classroom
and laboratory instruction. Students can expect homework assignments.
Course Topics include:
♦ Location of random test site
♦ MDOT Specifications concerning current Density requirements
♦ Relevant MTM’s and ASTM’s such as Speedy, Troxler 34XX, Michigan Cone Test,
One Point T-99 Test, and Michigan Modified T-180 Test
♦ Documentation requirements
Cost: $590 each session
DENSITY CONTROL RECERTIFICATION COURSE
Recertification is required every three years or every five years depending on the duration of your certification. It is the responsibility of the practicing technician to maintain an active certification. For recertification, the technician must pass both a written and practical examination similar in format to the original certification tests. Density Control Technicians with a three year certification are required to take the entire four day course (described above) to receive a five year certification. Density Control Technicians with a three year certification taking the two day re-certification course will receive a three year certification NOT a five year certification.
The refresher course includes a one day workshop followed on the second day by the
recertification written and practical examination. The refresher course gives technicians
an opportunity to review the certification test requirements and to be provided with updated
MDOT regulations. The recertification course does not allow sufficient time for technicians to practice test methods before the practical exam. Technicians that need additional time to practice before the practical exam should enroll in the entire four day training course.
Cost: $340 each session