General Description

The ductility test is performed for determining the ductility of bituminous materials by measuring the elongation before breaking when two ends of bri...
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Description

The ductility test is performed for determining the ductility of bituminous materials by measuring the elongation before breaking when two ends of briquette specimens are pulled apart at a specified speed and temperature.

Water bath
Insulated stainless steel water bath with a heating system located over the entire base surface and a stainless steel cooling coil (for connection to water mains or chiller) distributed over the three side walls assuring temperature uniformity without water turbulence inside the bath. All parts in contact with water are made of stainless steel.

Carriage displacement
Double-screew rods and mobile carriage enable test speeds from 5 to 100 mm/min. The system also permits the fast return of the carriage at the end of the test (500 mm/min) to reduce dead time and increase productivity. The carriage return is automatic, manual intervention is not required.

Temperature control

  • A closed-loop PID system assures constant temperature from 4 to 30°C, with a water chiller (see accessories)
  • Stainless steel cooling coil
  • Plate-type base heaters give better temperature uniformity
  • The thermoregulation system is based on control of the heater (which increases the temperature of the bath) and the control of the flow rate of the cooling coil by an electro-valve. This important feature assures control of the temperature within strict limits and permits the use of suitable standard water chillers.

Load and elongation measurement
Automatic measurement of the elongation by an encoder and of the test load of the four testing lines with load cells (not included).

Testing software 

  • Selection of test parameters (speed, temperature etx.) by PC. The test temperature, however, can be set in advance using the control panel of the machine.
  • Test control by PC: Start-Stop-Carriage return
  • Specimen failure recognition
  • Real-time display of load/elongation graph with advanced visualization options (single or multi-graph)
  • Data acquisition and processing conforming to Standards
  • Function for multiple test data comparison
  • Storage of test data

Machine control
By PC (not included)

Water cooling
This model is proposed without a chiller for use with a suitable cooling system that could be available in the laboratory. It is important, however, that this unit is capable of delivering a flow rate of 6 litres/min, 1 bar, at the minimum temperature of 2°C.

See-through cover
Essential for better temperature control of the bath.

Products

Code
Description
Units

Technical Specifications

Models 81-PV10B02
81-PV10B04
Conforms to Standards   EN 13398
EN 13589
EN 13703
ASTM D113
ASTM D6084
AASHTO T51
AASHTO T300
Machine control by PC with dedicated sofware (PC not included)
Thermostatically controlled 
water bath temperature
from 4 to 30°C
with water chiller  
Temperature control system Heater and cooling coil for connection to cold water or water chiller
Structure Stainless steel tank
Briquettes capacity 4
Max carriage travel 1500 mm
Testing speed Adjustable from 5 to 100 mm/min
Elongation measurement by Encoder (optical system)
Max. load and tension load measurement 1200 N tot: (4 x 300 N) by load cells or  (2x 500N capacity)
Tension load/elongation graph Real-time graphs by PC
Carriage return speed 500 mm/min
Power rating (approx.) 1200 W
Transparent cover Included
Overall dimensions (l x d x h) 2434 x 412 x 385 mm
Weight approx. 100 kg

 

Standards

  • ASTM D113
  • EN 13398
  • AASHTO T51
  • ASTM D6084
  • AASHTO T300
  • EN 13589
  • EN 13703

Accessories and Spare Parts

Code
Description
Units