Leave Your Message

Automatic Asphalt Tension Tester Bitumen Ductility Testing Machine Ductilometer

Asphalt ductilometer suitable for measuring the elongation of materials such as asphalt and liquid asphalt distillation residues and asphalt emulsion evaporation residues. Stainless steel screw drive, can automatically calculate and display the average elongation of three samples. Can store 20 sets of test data. Temperature digital display, LCD display test time, speed, and extension working status. Automatically calculate the average value of 3 samples, can be connected to a printer to print data. The instrument complies with the Ministry of Transportation JTG E20-2011 standard, and is widely used in production, road construction, scientific research, colleges and universities, and is more suitable for the test of improved asphalt.

    PRoduct description

    Mechanical structure: The screw is externally placed and the linear guide is positioned, with stable stretching, high precision and convenient observation.
    Stretching operation system: The stretching operation system adopts electronic frequency conversion, stepless speed regulation, low noise and no operating inertia.
    Control part: The control part adopts microcomputer processing, can store multiple sets of data, display the moving rate and precision temperature control, and has a user-friendly operation page.

    Technical parameters

    1. Power supply voltage: 220V±10% 50Hz±0.5Hz
    2. Temperature control range: 0~50±0.1℃ (display accuracy 0.01℃)
    3. Cooling power: 1.2kW
    4. Heating power: 1.8kW-2kW
    5. Maximum extension: 150cm; 200cm
    6. Extension speed: 5cm±0.25cm/min; 1cm±0.05cm/min
    7. Dimensions: Length 2050 (2550) × Width 440 × Height 900mm
    8. Test mold (optional): made of brass, three per group, divided into two specifications: extension mold and elastic recovery mold

    Maintenance

    7

    1. Regular cleaning: Regularly clean the dust, dirt and asphalt residue on the surface and inside of the instrument to prevent it from affecting the normal operation and measurement accuracy of the instrument.

    2. Check parts: Regularly check the wear of mechanical parts, such as screws, guide rails, gears, etc., and replace severely worn parts in time.

    3. Calibrate instruments: Calibrate instruments regularly in accordance with relevant standards and specifications to ensure the accuracy and reliability of measurement results.

    FAQ(Frequently Asked Questions)

    1. Test Standards & Testing Capabilities
    Q: Which international test methods and standard specifications does this ductilometer meet?
    A: This testing machine strictly complies with ASTM D113, AASHTO T51, EN 13589, EN 13703, and ASTM D6084 (Elastic Recovery). In addition to standard bitumen ductility testing, high-end variants are fully capable of performing Force Ductility (measuring tensile energy and peak force) and Elastic Recovery tests on polymer-modified bitumen (PMB).

    2. Bath Temperature Control & Cooling Performance
    Q: What is the bath temperature range, and does it include a built-in refrigeration system for low-temperature tests?
    A:Temperature Range: Precision controlled from 0°C to +50°C (configurable down to -10°C / -20°C for extreme low-temperature testing).
    Temperature Stability: PID microprocessor temperature controller with an integrated PT100 sensor and continuous circulation pump maintaining ±0.1°C bath uniformity.
    Refrigeration & Heating: Equipped with an internal CFC-free compressor-based refrigeration unit and corrosion-resistant electric heating elements for rapid temperature pull-down and thermal stabilization.

    3. Traction Mechanism, Travel Distance & Speed Control
    Q: What are the elongation travel length, pulling speed options, and drive mechanism?
    A:Travel Stroke: Maximum effective elongation travel of 1500 mm (150 cm), accommodating up to 3 or 4 simultaneous test specimens.
    Traction Speed: Variable pulling speed via precision ball-screw drive and stepper/servo motor, standard preset at 50.0 ± 2.5 mm/min (or adjustable from 1 to 100 mm/min for customized tensile protocols).
    Smooth Operation: Dual linear guide rails eliminate vibration and lateral buoyancy drift to prevent premature thread breakage.

    4. Force Measurement, Data Acquisition & Display
    Q: Does the system include tensile load cells and digital data output for force-ductility curves?
    A:Force Ductility Package: Models equipped with high-precision load cells (up to 3 individual cells, 100 N or 300 N capacity, 0.1 N resolution) record real-time tensile force versus elongation distance.
    Interface & Export: 7-inch industrial color touchscreen displays live stress-strain curves, deformation rate, elongation length at break, and calculated energy/recovery percentages. Data can be exported directly via USB port or Ethernet connection in CSV/PDF formats.

    5. Standard Molds, Power Supply & Accessories Included
    Q: What standard accessories, molds, and electrical options are supplied with the unit?
    A:Standard Accessories: Complete with 3 sets of standard brass ductility briquette molds, 3 base plates, specimen lifting hooks, immersion bath drain hose, and touch stylus. Elastic recovery molds and force-ductility load cell kits are available as standard upgrades.
    Power Configuration: Configurable for single-phase 220V/230V (50/60Hz, 2.0 kW) or 110V/60Hz depending on customer site requirements.
    Chamber Construction: Heavy-duty double-walled stainless steel (AISI 304) water bath with thick polyurethane foam insulation and a transparent hinged insulated cover.

    description2