Hot Mix Asphalt/Raw Material Sampling and Testing performed in accordance with the Department's Manual of Testing Procedures & the American Society for Testing & Materials. All Sampling and Testing will be performed by Exprienced TAPA Level 1-A Certified Personnel. Sampling and Testing will be performed at specified intervals based on project specifications (Lots, Sub-Lots, and Small Quantities.) The technician will record production test results as obtained on TxDOT work other approved forms (Spreadsheets and Control Charts). The result of on-going production testing will be reviewed for compliance with project plans, specifications and design/operational tolerances. In addition, the technician will provide a visual inspection of the production facilities to include the verification of plant temperatures and stock pile contaminiation.

Texas Department of Transportation Test Procedures

• Tex-222-F "Sampling Bituminous Mixtures"
• Tex-200-F "Sieve Analysis of Fine and Coarse Aggregates"
• Tex-206-F "Compacting Specimens of Bituminous Mixtures"
• Tex-207-F"Determining Density of Compacted Bituminous Mixtures"
• Tex-227-F "Theorectial Specific Gravity of Bituminous Mixtures"
• Tex-236-F "Determining Asphalt Content by the Ignition Method"
• Tex 423-A "Determining Pavement Thickness by Direct Measurement"

American Society for Testing & Materials

• ASTM D6926 "Standard Practice for Prepartion of Bituminous Specimens Using Marshall Apparatus"
• ASTM D6927 "Standard Test Method for Marshall Stability & Flow of Bituminous Mixtures"

Certifications: Texas Hot Mix Asphalt Pavement Association

• Hot Mix Asphalt Plant Production Specialist Level IA
• Hot Mix Aspalt Roadway Specialist Level IB
• Hot Mix Aspalt Mix Design Specialist Level II

 

 

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