Performance Exam Map and Mindset
Key Takeaways
- The ACI Field Testing Grade I performance exam is closed book and requires six hands-on demonstrations plus verbal description of ASTM C172/C172M sampling.
- The examiner evaluates whether every required step is performed or described correctly, so sequence control matters as much as general familiarity.
- A strong performance plan treats the checklists as scripts for safe, observable work with actual equipment.
- The performance exam is one of two required certification parts; passing the written exam alone does not grant certification.
Build the Performance Exam Around Observable Steps
The ACI Field Testing Grade I performance exam is closed book, and it is separate from the written exam. Certification is granted only after a passing written score and successful completion of the performance exam. Treat the practical portion as an inspection of your work process. The examiner is not grading confidence, job title, or how long you have worked around concrete. The examiner is checking whether the required steps are performed or described correctly.
The official performance format matters. The exam requires actual demonstration of six required test methods or practices and verbal description of ASTM C172/C172M sampling. Do not train as if all seven standards are hands-on stations. Sampling is still critical, but the candidate must describe it clearly enough that the examiner can judge whether the required sampling logic is understood.
A useful mindset is to make each action visible. If you pick up a tool, position it, consolidate concrete, strike off, clean, read, record, or move to the next step, do it in a way that shows control. Many failures come from a single missed action, a rushed sequence, or an unspoken assumption. Slow enough to be accurate, but avoid drifting into commentary that does not help the examiner see the required step.
| Performance exam element | How to prepare | What to avoid |
|---|---|---|
| C1064 temperature | Practice sensor placement, stabilization, and reporting habits | Reading too early or forgetting to record clearly |
| C143 slump | Rehearse filling, rodding, lifting, measuring, and invalid-test recognition | Lifting poorly or measuring from the wrong reference |
| C138 density | Practice measure handling, consolidation, strike-off, mass, and calculation workflow | Losing track of tare or unit consistency |
| C231 pressure air | Rehearse Type B meter assembly, water, valves, gauge reading, and pressure release | Skipping checks or mishandling petcocks |
| C173 volumetric air | Practice the rollameter sequence, reading agreement, and bowl examination | Rushing inversions, rolling, or final validation |
| C31 specimens | Practice molds, consolidation, finishing, identification, protection, and curing setup | Treating specimen making as casual bucket work |
| C172 sampling | Practice a concise verbal description of composite sample control | Reciting fragments without sample timing and protection logic |
Use a checklist as a practice script, not as a crutch you expect to read during the exam. The performance exam is closed book. During practice, say the name of each method, set up the tools, perform the action, and end by stating what result or condition would be recorded. Then run the same station again without the paper in your hand.
The best preparation is physical. A candidate who only reads CP-1 or watches demonstrations may recognize the steps but still fumble when concrete, tools, time pressure, and an examiner are present. Practice with the same kinds of equipment you expect to see: slump cone, tamping rod, strike-off tools, temperature device, unit weight measure, air meters, molds, scoop, mallet where applicable, and recording materials.
Stay organized between stations. Reset tools, keep concrete handling clean, and know what the next method requires before you start. The examiner should see a technician who protects the sample, follows the method, communicates essential actions, and records results without improvising.
Which statement correctly describes the ACI Field Testing Grade I performance exam format?
Why should candidates practice with actual testing equipment before the performance exam?
Which habit best supports performance exam success?