American Concrete Institute

Self-Consolidating Concrete Testing Technician


In order to attain ACI Certification as a Self-Consolidating Concrete Testing Technician, you must successfully complete both the ACI written and performance examinations.

Self-Consolidating Concrete Testing Technician is an individual who has demonstrated the knowledge of and ability to properly perform five standard test methods and practices on self-consolidating concrete.

Who Should Attend

This program is for anyone who tests concrete in the field; testing lab technicians, contractor quality control personnel, architect/engineer inspectors and ready mixed concrete personnel. The examinee must be familiar with test procedures, come prepared to demonstrate knowledge and ability to perform these tests and be dressed for working with concrete.


Typically, the agenda for the course follows this schedule:

8:00 AM
8:30 AM
Written Exam

Scope and Knowledge

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

JTA for ACI Certification Self-Consolidating Concrete Testing Technician

The JTA is a detailed list of specific points of knowledge and skills that may be included in the examinations for this ACI Certification program. ACI urges candidates to use the JTA to prepare for the certification exams.

This program assesses proficiency in the following ASTM test methods and practices:

  • C1610/C1610M—Static Segregation of Self-Consolidating Concrete Using Column Technique
  • C1611/C1611M—Slump Flow of Self-Consolidating Concrete
  • C1621/C1621M—Passing Ability of Self-Consolidating Concrete by J-Ring
  • C1712—Rapid Assessment of Static Segregation Resistance of Self-Consolidating Concrete Using Penetration Test
  • C1758/C1758M—Fabricating Test Specimens with Self-Consolidating Concrete

Certification Requirements

ACI will grant certification to candidates who meet both of the following requirements:

  1. Passing score on the written examination, AND
  2. Successful completion of the performance examination.

The one-hour written examination is closed-book and consists of approximately 50 multiple-choice questions. There are between 6-10 questions on each of the ASTM test methods and practices. To pass the written examination, BOTH of the following conditions must be met:

  1. Minimum score of 60% correct for each of the required test methods and practices, AND
  2. Minimum score of 70% overall.

The performance examination is also closed-book and requires actual demonstration of the required test methods and practices. The examinee is assessed on his/her ability to correctly perform (or describe items verbally, where allowed) all of the required steps for each procedure.

Certification is valid for a period of five years from the date of successfully completing all requirements.

Recertification requires the successful completion of both the written and performance examinations.

Registrant Responsibilities

A picture ID is required to attend the course.

Registrants are advised to bring pencils and a calculator.

Safety gear is required: steel-toe shoes, and safety glasses.

Bring water and dress appropriately for the weather.

Mobile devices are not allowed during the test.

Course and Test Management

The ACI Certification Program is conducted by a local sponsoring group. This group is the Oklahoma Ready Mix Concrete Association and is responsible for scheduling and conducting all review courses and examination sessions, payment of all bills and establishment and collection of all registration fees. The ACI Certification Department assists the local sponsoring group in setting up the program and manages the daily operation of the program. This includes the publication and distribution of all books and exams, grading, maintenance of certification records and issuance of a certification to successful candidates.

Study materials will be sent upon receipt of registration and payment of fees. You will not be considered registered until payment is received.

Cancellations and Rescheduling

If a registrant is unable to attend, retests must be scheduled for one of the next two sessions. Reschedules must be received two weeks prior to the test date for the registrant to reschedule at no penalty.  If less than 2 weeks notice is given, a $100 administrative fee will be charged and must be paid before reschedule is processed.

No Call, No Show to the exam will forfeit the entire exam registration fee.

Registrant Substitutions can be made at any time without penalty.

If a test is canceled by ORMCA due to weather, illness, or other reason, ORMCA's responsibility will be limited to the return of registration fees only or reschedule at no penalty to the registrant.