ACI Aggregate Testing Tech-Level 1

Service Description

An Aggregate Testing Technician—Level 1 is an individual who has demonstrated the knowledge and ability to properly perform, record, and report the results of basic field and laboratory procedures for aggregates. The program requires a working knowledge of the following AASHTO/ASTM standards: AASHTO R 90/ASTM D75 – Standard Method of Test for Sampling of Aggregates AASHTO R 76/ASTM C702 – Standard Method of Test for Reducing Samples of Aggregate to Testing Size AASHTO T 11/ASTM C117 – Standard Method of Test for Materials Finer than 75-µm (No. 200) Sieve in Mineral Aggregates by Washing AASHTO T 27/ASTM C136 – Standard Method of Test for Sieve Analysis of Fine and Coarse Aggregates AASHTO T 85/ASTM C127 – Standard Method of Test for Specific Gravity and Absorption of Coarse Aggregate AASHTO T 84/ASTM C128 – Standard Method of Test for Specific Gravity and Absorption of Fine Aggregate AASHTO T 255/ASTM C566 – Standard Method of Test for Total Evaporable Moisture Content of Aggregate by Drying AASHTO T 21/ASTM C40 – Standard Method of Test for Organic Impurities in Fine Aggregates for Concrete Certification Requirements: ACI will grant certification only to those applicants who meet both of the following requirements: A passing grade on the ACI written examination, and Successful completion of the ACI performance examination. The two-hour written examination is open-book and consists of approximately 100 multiple-choice questions. There are 8 to 12 questions on each standard. To pass the written examination, both of the following conditions must be met: At least 60% correct for each of the required standards, and A minimum score of 70% overall. The performance examination is closed-book and requires actual demonstration of the required standards. The examinee is judged on his/her ability to correctly perform or describe all of the required procedures for each standard. Certification is valid for a period of five years from the date of successfully completing all requirements. Recertification requires successful completion of both the written and performance examinations.