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AASHTO T 331 / ASTM D 6752
Bulk Specific Gravity Vacuum Seal
This method covers the determination of bulk specific gravity of specimens of hot mix asphalt.
Equipment List
Scale (0.1 g)
Scale Equipment Description
Scale Calibration Worksheet
Scale In-House Procedure
This item should be listed on the laboratory inventory list.
This item should be calibrated.
Thermometer
Laboratory Thermometer Equipment Description
Laboratory Thermometer Calibration Worksheet
Laboratory Thermometer In-House Procedure
This item should be listed on the laboratory inventory list.
This item should be calibrated.
Water Bath Suspension Equipment
This item is required for T331
Water Bath (77 F)
This item should be listed on the laboratory inventory list.
This item should be calibrated.
Plastic Bags
This item should be listed on the laboratory inventory list.
Bag Cutter
This item should be listed on the laboratory inventory list.
Oven (125F) or Core Dryer
Oven Equipment Description
Oven Calibration Worksheet
Oven In-House Procedure
This item should be listed on the laboratory inventory list.
This item should be calibrated.
Vacuum Sealing Device
Vacuum Sealing Chamber Equipment Description
Vacuum Chamber Calibration Worksheet
Vacuum Chamber In-House Procedure
This item should be listed on the laboratory inventory list.
This item should be calibrated.
Verify Hot Mix Water Bath Temperature (performed by inspector)
This item is required for T331
Water Bath Heater
This item is required for T331