ACI Level I Technician Certification

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Concrete workers pouring concrete.
Concrete workers pouring concrete. (Image: Wittybear/iStock/Getty Images)

The American Concrete Institute began in 1904 and serves as an educational organization for professionals who work in the concrete industry. To encourage education among professionals who work in the field, the ACI sponsors a certification program. Various types of certification are available, including the Concrete Laboratory Testing Technician Level 1 credential.

Certification Features

The ACI offers its certification programs through local sponsoring groups. To pursue ACI Concrete Laboratory Testing Technician Level 1, candidates must contact their nearest sponsoring group. The ACI provides a directory of nationwide groups on its website. The ACI Concrete Laboratory Testing Technician Level 1 certification is not an entry-level credential; to gain the designation, prospective certificants must first gain two other certifications: ACI Concrete Strength Testing Technician and ACI Aggregate Testing Technician Level 1. Once certified, technicians must renew their credentials every five years.

Preliminary Certifications

The Concrete Strength Testing Technician prerequisite certification requires applicants to pass a written examination and a demonstration of skills in measuring the flexural strength of concrete samples. The written test consists of 40 multiple-choice questions and and lasts up to one hour. The Aggregate Testing Technician Level 1 certification also requires the completion of written and skills demonstration tests. The ATT designation written component has 100 questions; candidates have up to two hours to complete the test. After gaining both certifications, technicians are prepared for Concrete Laboratory Testing Technician Level 1 credentialing.

Taking the Exam

Requirements for the Concrete Laboratory Testing Technician Level 1 certification program vary among local sponsoring groups, but most administer a written test and an exam to demonstrate skills. The ACI establishes a list of skills that all technicians are expected to meet. These include strength testing, sampling aggregates, conducting sieve analysis, calculating specific gravity and identifying impurities in specimens. The ACI sells training manuals that prospective certificants can purchase to prepare for testing.

Advancement

After gaining Level 1 certification from the ACI, technicians can advance to the second level of Concrete Laboratory Testing Technician certification by meeting certain requirements. ACI requires 2,000 hours of work experience or formal education for the credential. Technicians must also have a valid, unexpired Level 1 certification to qualify. Prospective Level 2 techs must pass a skills test, demonstrating the ability to perform tasks such as making concrete specimens and creating drilled core specimens. In addition, candidates must pass a multiple-choice, 75-question written examination.

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