An ACI certified Cement Physical Tester is an individual who has demonstrated the knowledge and ability to properly perform, record, and report the results of specific ASTM tests on the physical properties of cementitious materials.
Scope and Knowledge:
The program requires a working knowledge of the following ASTM test methods and practices:
- ASTM C109—Standard Test Method for Compressive Strength of Hydraulic Cement Mortars
- ASTM C151—Standard Test Method for Autoclave Expansion of Hydraulic Cement
- ASTM C185—Standard Test Method for Air Content of Hydraulic Cement Mortar
- ASTM C187—Standard Test Method for Amount of Water Required for Normal Consistency of Hydraulic Cement Paste
- ASTM C191—Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
- ASTM C204—Standard Test Method for Fineness of Hydraulic Cement by Air-Permeability Apparatus
- ASTM C305—Standard Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
- ASTM C430—Standard Test Method for Fineness of Hydraulic Cement by the 45-µm (No. 325) Sieve
- ASTM C 490—Standard Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar and Concrete
- ASTM C1437—Standard Test Method for Flow of Hydraulic Cement Mortar
Job Task Analysis (JTA) for ACI Cement Physical Tester
ACI will grant certification only to those applicants who:
- Obtain a passing grade on the ACI written examination, AND
- Obtain a passing grade on the ACI performance examination, AND
The two-hour written examination is open-book and consists of approximately 100 multiple-choice questions. To pass the written examination, BOTH following conditions must be met:
- At least 60% correct for each of the required test methods and practices; AND
- A minimum score of 70% overall.
The performance examination is closed-book and requires actual demonstration of the ten (10) required test methods and practices. The examinee is judged on his/her ability to correctly perform (or describe, where allowed) required steps for each procedure.
Recertification is necessary every five years and requires successful completion of both the written and performance examinations.