Concrete Strength Testing Technician


A Concrete Strength Testing Technician is an individual who has demonstrated the knowledge and ability to properly perform, record, and report the results of four basic laboratory procedures related to the determination of concrete compressive and flexural strength.

 To become ACI Concrete Laboratory Testing Technician Level I certified you must obtain both the ACI Concrete Strength Testing Technician and the Aggregate Testing Technician Level I certifications.  Accommodations are made for those individuals who want to take both certifications or trainings at the same session.


Certification/Recertification Member: $370 Non Member: $425

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: $125 Non Member: $200

Includes two 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) 


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

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

Friday 5:00 p.m. - 6:00 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):

Job-task analysis (JTA) for ACI Certification of Concrete Strength Testing Technician

The program requires a working knowledge of the following ASTM test methods and practices:

  • C617/C617M—Capping Cylindrical Concrete Specimens

  • C1231/C1231M—Unbonded Caps for Concrete Cylinders

  • C39/C39M—Compressive Strength of Cylindrical Concrete Specimens

  • C78/C78M—Flexural Strength of 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 one-hour written examination is closed-book and consists of approximately 40 multiple-choice questions. There are at least eight questions on each of the practices and test methods.

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

  1. At least 60% correct for each of the required practices and test methods, and

  2. A minimum score of 70% overall.

The performance examination is also closed-book and requires actual demonstration of the required practices and test methods. The examinee is judged on his/her ability to correctly perform all of the required steps for each procedure.

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