A&SW Consultants, Inc.

Tel: (386) 788-9899

5545 Benchmark Lane

  Sanford, Florida 32773

  • ​The Moisture Density Relation of Soils using a 5.5 pound Rammer and a 12 inch Drop (AASHTO T-99)

  • The Moisture Density Relation of Soils using a 10 pound Rammer and an 18 inch Drop (AASHTO T-180)

  • Limerock Bearing Ratio

        (FM 5-515)

  • Laboratory Determination of Moisture Content of Granular Soils by Use of a Microwave Oven (FM 5-535)

ctqp qualifications:

course subject matter:

Full Course & Exam(s)
Written Exam OnlyProficiency Exam Only

LBR Technician

exam requirements:

course objective:

Two Days, including course and exam.

Course duration:


  • ​​Initial Qualification Requirements:

    • Qualified CTQP Aggregate Base Testing Technician

    • Pass LBR Written exam

  • Re-Qualification Requirements:

    • Same as Initial Qualification

  • Manual Revision, 9/3/2008:

    • The date of qualification shall be the date the last qualification requirement was satisfied.  

    • The CTQP Qualification shall expire in 60 months from date of completion of the final LBR exam or expire on the date of expiration of the ACI Aggregate Base Testing Technician certification, whichever is earlier.

Written Exam Required and Proficiency Exam is NOT Required.

Open Book Exam.  Allowed up to 1 Hour to Complete the Written Exam.

To ensure personnel responsible for testing or inspecting mineral aggregates and soils are knowledgeable with appropriate testing methods.