There are now 80,000 active concrete field testing technicians certified through the American Concrete Institute (ACI). This record number of certified technicians follows a rising trend in recent certification numbers to meet the growing demands of the concrete industry. Since its inception, ACI has certified more than 250,000 field testing technicians.
Managing Director of Certification at ACI, John W. Nehasil says, “We’ve never had a qualified workforce this big before. It means there are more people on the jobsites who are certified to do the job correctly – assuring testing is performed correctly, giving confidence in the test results, and improving quality control.”
The Concrete Field Testing Technician – Grade I certification, ACI's most popular program, is given to those who can properly perform and record the results of seven basic field tests on freshly-mixed concrete. These tests include:
- Temperature of Freshly Mixed Hydraulic-Cement Concrete
- Sampling Freshly Mixed Concrete
- Slump of Hydraulic-Cement Concrete
- Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
- Air Content of Freshly Mixed Concrete by the Pressure Method
- Air Content of Freshly Mixed Concrete by the Volumetric Method
- Making and Curing Concrete Test Specimens in the Field
The five-year certification consists of a written and performance exam. It is offered through ACI’s global network of more than 120 sponsoring groups in local concrete communities.