Aggregate/Soils Base Testing Technician (CP-43)

    February 08, 2019 1:00 PM to February 09, 2019 5:00 PM
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    Terracon Consultants
    11555 Clay Road
    Houston, TX 77043

    • Workshop (February 8, 2019) consists of a performance review. Check-in for the workshop begins at 1 p.m. Students can expect to be finished at approximately 6 p.m.
    • Test (February 9, 2019) includes the 120-minute written exam followed by the performance (hands-on) exam. Check-in for the test begins at 6:30 a.m. and the test will begin at 7:00 a.m. The doors will be locked and those that are late will not be allowed to take the exam.
      • A valid ID is required on the day of the test. The ID will be held until the Examinee completes and turns in their test(s) booklet/answer sheet.
    • Pricing: Includes the review, CP-43 workbook, hands-on practice, and exam. Books will not be mailed. However, arrangements can be made for pick-up.
    • Meals: Breakfast and lunch is provided during the workshop and breakfast is provided during the test.
    • Physical Strength Requirement: You must be able to lift at least 45 lbs when performing some of the performance tests. No exceptions without a valid doctor’s note stating that you are not able to lift 45 lbs.
    • PPE: Steel or composite-toed shoes, long pants, safety glass and gloves are required.
    • Lodging: If traveling from out of town the following hotels are nearby:


    Comfort Suites
    11440 Clay Road 
    Houston, TX 77041
    Holiday Inn & Suites
    4606 Westway Park Boulevard
    Houston, TX 77041
    Sheraton Houston West
    11191 Clay Road
    Houston, TX 77041


    • Points of Contact for this exam are Mark Dornak ([email protected]) or Joe Hill ([email protected]).
    • Interpreters: While we do not provide interpreters, we do have examiners that speak Spanish and Farsi that are able to assist with questions. Please make sure you annotate this on your registration.
    • Refund Policy: Refunds may be issued on a case-by-case basis, up until 14 days prior to the workshop. There will be a $25.00 service fee charged for refunds. No refunds will be issued within 14 days of the workshop. A one-time transfer will be allowed within the 14 days if notice is given prior to the day before the workshop. There will be a $25.00 service fee for transferring.
    • Waiver: The attached waiver (see below) must be filled out and brought to class.



    An Aggregate Base Testing Technician 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 and soils.

    Scope and Knowledge:
    The program requires a working knowledge of the following AASHTO and/or ASTM standards:

    • T 2/D75—Sampling Aggregates
    • T 248/C702—Reducing Samples of Aggregate to Testing Size
    • R 58/D421*—Dry Preparation of Disturbed Soil and Soil-Aggregate Samples for Test
    • T 89/D4318—Determining the Liquid Limits of Soils
    • T 90/D4318—Determining the Plastic Limit and Plasticity Index of Soils
    • T 88/D422—Particle Size Analysis of Soils
    • T 265/D2216—Laboratory Determination of Moisture Content of Soils
    • T 180/D1557—Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop
    • T 99/D698—Moisture-Density Relations of Soils Using a 2.5-kg (5.5-lb) Rammer and a 305-mm (12-in.) Drop


    *Written exam only

    Certification Requirements:

    ACI will grant certification only to those applicants who meet both of the following requirements:

    1. A passing grade on the ACI written examination, and
    2. 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 of the standards.

    To pass the written examination, both of the following conditions must be met:

    1. At least 60% correct for each of the required standards, and
    2. 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.

    Recertification is necessary every five years and requires successful completion of both the written and performance examinations.

    Study Material:

    Go to the ACI Bookstore on this website to order and/or obtain current pricing on any items listed below:

    CP–43(14): Technician Workbook for ACI Certification of Aggregate Base Testing Technician

    This workbook contains information about the ACI Aggregate Base Testing Technician (ABTT) certification program, performance checklists, and reprints of all of the resource materials referenced by the certification examinations.

    Program Policy:



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    $300.00 Aggregate/Soils Base Testing Technician - Performance Retest

    $300.00 Aggregate/Soils Base Testing Technician - Written Retest

    $600.00 Aggregate/Soils Base Testing Technician - Full Certification

    $550.00 MEMBER - Aggregate/Soils Base Testing Technician - Full Certification