Aggregate Field Tester


The CIT Program provides the following methods for obtaining certification. Visit the Registration and Schedule page to register for the option you prefer.

1. Aggregate Field Course

Course options include:

Online course - course is online and available upon registration. Course access is available until the end of the season in June. Written and performance exams are administered in Salina, KS.

In Person course - three day course instructed in Salina, KS and written and performance exams are administered on the last day.

Prerequisite: Pass Basic Math test prior to enrolling for the course.

2. Aggregate Field Quiz Out Exam

The quiz out exam option allows a person to take the written and performance exams for initial certification or for recertification without attending class. If this option is chosen, the individual is expressing their knowledge and ability to perform test procedures without coaching. This option is recommended for individuals who have at least five years of experience. Written and performance exams are administered in Salina, KS.

3. Aggregate Field Exam with IA Witness

This option is for individuals who have been IA witnessed and only need to take the written exam. You must submit the witness form indicating that KT-1, KT-2, KT-3, KT-11 & KT-50 have been witnessed. This form can be submitted upon registering. The written exam is administered online at the student’s location and requires a supervisor or supervisor approved proctor.

Course Description

This course is required by the Kansas Department of Transportation for persons involved with aggregate field testing.

Learning Objectives

  • Practice random sampling.
  • Reduce field samples of aggregate to testing size.
  • Test fine material by washing.
  • Determine moisture content by drying.
  • Determine particle size by a sieve analysis.
  • Test uncompacted void content of fine and coarse aggregates.

Course Material

Download the Aggregate Field Tester Workbook

Performance Checklists

KT-01 Sampling and Splitting of Aggregates (Sampling)
KT-01 Sampling and Splitting of Aggregates (Splitting)
KT-02 Sieve Analysis of Aggregate
KT-03 Material Passing the No. 200 Sieve by the Wash Method
KT-11 Moisture Tests (Constant Mass Method)
KT-50 Uncompacted Void Content of Fine Aggregate

Testing Information

Exam: The class and quiz out options require a written exam and a performance exam. The exam with IA Witness option requires a written exam.

Score: A score of 60% on each portion of the written exam plus a 70% overall score is required to pass the exam. Failure on any part of the written exam requires a full retest. If three or less performance sub tests are failed, only the sub test failed must be retaken. If four or more sub tests are failed, all performance sub tests must be retaken.


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