AGG101 AGG101 is a one-day certification course that certifies an individual’s ability to sample and test aggregates according to TxDOT Test Procedures and Specifications. There is no demonstration or training; individuals must come prepared to pass both a written and practical examination. AGG101 is now a pre-requisite for Level 2. Test Procedures covered: Click on link to view test procedure: Tex-107-E, Determining the Bar Linear Shrinkage of Soils (August 1999) Tex-200-F, Sieve Analysis of Fine and Coarse Aggregates (Part 1 & 2) (January 2020) Tex-201-F, Bulk Specific Gravity and Water Absorption of Aggregate (January 2020) Tex-203-F, Sand Equivalent (January 2016) Tex-212-F, Determining Moisture Content of Bituminous Mixtures (Part 2) (March 2016) Tex-217-F, Determining Deleterious Material and Decantation Test for Coarse Aggregates (Parts 1, 2 & 3) (July 2019) Tex-221-F, Sampling Aggregate for Bituminous Mixtures, Surface Treatments and LRA (January 2018) Tex-224-F, Determining Flakiness Index (August 2016) Tex-280-F, Determining Flat and Elongated Particles (February 2005) Tex-400-A, Sampling Flexible Base, Stone, Gravel, Sand and Mineral Aggregates (January 2010) Tex-401-A, Sieve Analysis of Fine and Coarse Aggregate (August 1999) Tex-402-A, Fineness Modulus of Fine Aggregate (August 1999) Tex-404-A, Determining Unit Mass (Weight) of Aggregates (August 1999) Tex-406-A, Decantation Test for Concrete Aggregate (Part 1) (August 1999) Tex-408-A, Organic Impurities in Fine Aggregate (December 2016) Tex-413-A, Determining Deleterious Material in Mineral Aggregate (August 1999) Tex-460-A, Determining Crushed Face Particle Count (Part 1) (August 1999) Tex-461-A, Degradation of Coarse Aggregate by Micro-Deval Abrasion (November 2016) Re-certification AGG101 Aggregate Specialists are required to re-certify every three years by attending a one day certification course. Specialists can re-certify up to one year prior to the expiration date. If certification expires, the specialist may not perform any AGG101 responsibilities on a TxDOT project. Training Class The AGG101 Training classes will be three-days in length and focus on providing a basic understanding and knowledge of the TxDOT Test Procedures and Specifications. These classes are not pre-requisites to any certification class and participants will not earn certification. Federally Mandated Annual Proficiency The Texas Department of Transportation requires all AGG101 Specialist to participate in an Annual Proficiency Program. Participation in this program is MANDATORY. Failure to participate will result in certification revocation. To learn more about the proficiency program, click here.