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September 21, 2021
  All Categories  >  Asphalt Binder Testing (+Superpave)  >  Direct Tension
  Product Information
Direct Tension System, AsphaltPro
Model: BTDT-1
Price: Discontinued by Manufacturer
Condition: New
Warranty: Yes
Availability: Inquire
   Product Model # Price   Sale Price Qty
 Direct Tension Heat Sink (Set of 3)   BTA-34   $350.00      
 DT Test Specimen Mold - Set of Six (6)   BTA-17   $1,150.00      
 End Tabs for DT Test Specimen Mold - Set of 2   BTA-18   $80.00      
 Extra DT Test Specimen Mold   BTA-16   $185.00      
  In cooperation with the Federal Highway Administration, Instron has developed an advanced system for direct tension testing of asphalt binder.

The AsphaltPro Direct Tension Testing System, which was supplied to all 50 state DOTs, measures the failure properties of asphalt binder at low in-service temperatures according to AASHTO TP3. Simple to use and operate.

The load frame consists of a two-column drive system which incorporates a motor, encoder, 500N load cell, LVDT, and loading pins into a single easily replaceable unit. A spare load frame is available for customers who want to ensure high productivity and minimize downtime due to calibration or servicing. In addition, Instron's load frame design allows for both the load cell and the LVDT to be separately calibrated in the field. The integrated LVDT allows for precise measurement of loading pin separation and provides feedback for closed-loop control of the straining rate at the loading pins.

  • Compact, table-top system
  • Modular load frame design for easy servicing
  • Simple to set-up and operate
  • Drive system is located outside test bath for improved reliability
  Testing Standards
  • SHRP B-004
  • ASTM D6723


  • Temperature Stability: +/- 0.1 degree C
  • Load Weighing Accuracy: +/-0.5%of reading to 1% of capacity
  • Speed Accuarcy: +/-0.1% of set speed
  • Max. Load: 500 N (112lb)
  • Power Requirements: 120 volts, 60 Hz/8A - Optional: 100V, 230V, 240V
  • Temp. Range: +6 C to -26 C
  • Minimum Speed: 0.001 mm/min (0.00004 in/min)
  • Max. Speed: 300 mm/min (12 in/min)


  • Shipping Dimensions: 315 lb (143kg); Cu. Ft.: 58

Recommended Accessories

  • Extra End Tabs, Set of 2
  • Extra Specimen Mold

Included Accessories

  • Specimen preparation kit which includes molds and 12 end tabs for making six individual specimens.
  • Two specimen holders
  • Merlin Software, a Windows based control and data acquisition software for materials testing.
  • Aluminum test specimen to easily qualify the system's setup and performance.
  • Specimen tongs, release paper & agent

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