The center recognizes the importance of the role soils and bases play in construction. In 2007, the HMAC began training and certifying technicians in Soils and Base. Many states have visited the center and have used it as a model to develop their own certification programs. The teamwork philosophy that TxDOT and TXAPA used to develop the certification program has enabled the HMAC to gain national recognition as a superior program. Procedures for certification include a hands-on demonstration of test performance, evaluation of test performance by a certified evaluator, classroom participation, and a written examination. At the end of the three-year period, specialists are required to complete re-certification courses. The original certification is valid for three years. These levels include: field laboratory testing (Level 1A), quality management and mix design (Level 2), roadway testing (Level 1B), and in 2019 aggregates specialist (AGG101) was implemented. The intent of the program is to improve the quality and performance of hot mix asphalt pavements through knowledge and understanding of the product.Ĭurrently, the HMAC provides three levels of certification in testing and evaluating hot mix asphalt. The purpose of the Certification Program for Hot Mix Asphalt Specialists is to develop and maintain a pool of well-trained specialists for the state and contractors to design, test, and manage hot mix asphalt pavements. A joint TxDOT/TXAPA Steering Committee carries out oversight of the operation to ensure the integrity of the program meets the high standards originally stipulated.
Today, the Texas Asphalt Pavement Association (TXAPA) manages and operates the center and certification program that meets TxDOT’s requirements and specifications. The Hot Mix Asphalt Center (HMAC) was developed to implement the certification program. Through this extensive process, they determined that a certification program for technicians involved in sampling, testing, and designing hot mix asphalt would play a major role in the success of the QC/QA specification. TxDOT called on the industry to assist them in the research, data analysis, and review of existing QC/QA specifications to generate a comprehensive specification. The development of the Texas Department of Transportation’s (TxDOT) Quality Control/Quality Assurance (QC/QA) Hot Mix Asphalt specification was a positive step toward improving the quality of hot mix asphalt pavements in the state. Educating Technicians to Elevate Asphalt Pavement Quality in Texas Since 1993
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