Aggregate Testing Technician Level I


An Aggregate Testing Technician Level I is an individual who has demonstrated the knowledge and ability to properly perform, record, and report the results of basic field and laboratory procedures for aggregates.


Certification/Recertification Member: $395 Non Member: $450

For those individuals certifying for the first time or those who are recertifying. Fee includes ACI study guide, classroom review session, written and performance exams.  (Fee does not include training session.)

Training Session Member: $260 Non Member: $335

Includes three nights of classroom/laboratory training. Training is not required but is highly recommended for individuals certifying for the first time.

Written/Performance Exam Only Member: $205 Non-Member: $260

For those individuals who failed their written or performance exam on their first testing attempt.  Fee includes review session and written or performance exam. (no study guide)


Tuesday 5:30 p.m. - 8:30 p.m.
Classroom/Laboratory Instruction

Wednesday 5:30 p.m. - 8:30 p.m. 
Classroom/Laboratory Instruction

Thursday 5:30 p.m. - 8:30 p.m.
Classroom/Laboratory Instruction

Friday 6:30 p.m. - 8:30 p.m.
Classroom Review Session

Saturday 7:00 a.m. - 2:00 p.m.
Written/Performance Exams

*Times and days are subject to change without notice.
There is absolutely no photography, audio or video recording allowed at the training, review, or testing sessions.


Individuals requesting special accommodations enabling them to participate in ACI certification examinations must submit a letter from their primary physician to the Las Vegas Chapter ACI describing the physical challenge and providing a proposed solution (i.e. more time, a reader for the questions, physical assistance, etc.).  The Las Vegas Chapter ACI will forward the request and physician’s letter to ACI for direction.  Since the notification and formulation of appropriate accommodations takes time, candidates must make their request and submit the physician letter to the Las Vegas Chapter ACI at least three weeks prior to a certification examination session to formulate appropriate accommodations, arrange for their availability at the session, and accept the registration.


Participant can cancel registration by emailing a request to [email protected] five (5) business days prior to a certification training/testing/seminar/or chapter event to receive a refund of the registration fees less the cost of study materials. Substitutions may be made at any time prior to the event by emailing [email protected]


This program requires demonstration of the knowledge and hands-on skills covered on the Job Task Analysis (JTA):

JTA for ACI Aggregate Testing Technician—Level 1

The program requires a working knowledge of the following AASHTO/ASTM standards:

  • T2–91/D75–03—Sampling Aggregates

  • T248–11/ C702–98—Reducing Samples of Aggregate to Testing Size

  • T11–05/ C117–04—Materials Finer Than 75-µm (No. 200) Sieve in Mineral Aggregates by Washing

  • T27–11/ C136–06—Sieve Analysis of Fine and Coarse Aggregates

  • T85–10/ C127–04—Specific Gravity and Absorption of Coarse Aggregate

  • T84–10/ C128–07a—Specific Gravity and Absorption of Fine Aggregate

  • T255–00/ C566–97—Total Moisture Content of Aggregate by Drying 

  • T21–05/ C40–04—Organic Impurities in Fine Aggregate for Concrete 


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

  1. A passing grade on the ACI written examination, and

  2. Successful completion of the ACI performance examination.

The two-hour written examination is open-book and consists of approximately 100 multiple-choice questions. There are eight to 12 questions on each of the standards.

To pass the written examination, both of the following conditions must be met:

  1. At least 60% correct for each of the required standards, and

  2. A minimum score of 70% overall.

The performance examination is closed-book and requires actual demonstration of the required standards. The examinee is judged on his/her ability to correctly perform or describe all of the required procedures for each standard.

Recertification is necessary every five years and requires successful completion of both the written and performance examinations.

Aggregate Testing Technician Level I Registration Form