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ASPHALT    
     
  Asphalt testing system for static and dynamic tests,
6 kN cap


The asphalt testing system for static and dynamic tests and the servo-pneumatic testing system capable of applying a sinusoidal dynamic strain with range of frequencies up to 50 Hz


 

Automatic penetrometer

A compact instrument using the latest technologies and programmation tools:
Motorised mobile head, digital keyboard, 51 family microprocessor, LCD alphanumeric display. During the test, depth penetration is permanently displayed both in units and tenth of units (0.01 mm). An optelectronic detection Of depth penetration with an automated approach and a leveling system for conductive samples are available.


 

Automatic ring and ball apparatus

This advanced microprocessor controlled automatic tester is used to determine the softening point of bitumen using, as heating fluid, water or glycerol.The softening point is taken by two light barriers suitably positioned and the temperature measured by a PT100 sensor placed in a middle position.




 

Ductility testing machines

Force ductility machines can be upgraded with the installation of three load cells in line with each ductility mould and specimen test position, to measure the tensile force and determine the conventional energy of bitumen binders from traction characteristic.



  Dynamic triaxial testing module for unbound material

The resilient modulus is determined by the repeated load triaxial compression tests and is calculated as the ratio of the amplitude of the repeated axial stress to the amplitude of the resultant recoverable axial strain. The value of resilient modulus obtained from this procedure is a measure of the elastic modulus of untreated base and sub base materials and sub-grade soils, characterized by a non-linear elastic stress/strain behavior. This testing module comprises the triaxial cell with accessories and the testing software.





 

Flash and fire point

Used for determining the flash and fire point of petroleum products. It consists of a brass cup mounted on an electric heater with temperature controller.





 

Gyratory compactors

The machines are supplied complete with height calibration tool,
control program, air hose, metal stand (76-B0251 only) and operating
instructions. Test moulds, mechanical extruder and air compressor
have to be ordered separately.



  Marshall stability tester (digital)

The machine feature a robust two-column frame with motor and worm
gear housed within the base unit producing a platen speed of 50.8 mm/min. The measuring system consists of a strain gauge load cell and displacement transducer applied externally connected to the Digimax Plus unit with large graphical display and standard software covering either the Marshall or the indirect tensile test, as specified successively.



  Mixers with heaters

All models are supplied complete with whisk. The bowls of the 5 and 10 liters models can be fitted with an isomantle electric heater. The 20 liters model is fitted with gas heater. Used to heat the mixing bowl of mixers containing bituminous mixtures. They are fitted with an electronic temperature regulator and can be easily fitted to the machine bowls by two spring. Pressure ageing vessel

Aging is today one of the fundamental parameter for the evaluation of the performance qualities during field service. The Pressure Aging Vessel has been developed to simulate in-service ageing of asphalt binder after 5 to 10 years. TheBinder is exposed to high pressure and temperature for 20 hours to simulate the effect of long term oxidative ageing.




  Pressure ageing vessel

Aging is today one of the fundamental parameter for the evaluation of the performance qualities during field service. The Pressure Aging Vessel has been developed to simulate in-service ageing of asphalt binder after 5 to 10 years. The Binder is exposed to high pressure and temperature for 20 hours to simulate the effect of long term oxidative ageing.


  Rolling thin-film oven

Used for measuring the effect of heat and air on a moving film of semisolid bituminous materials. Internal chamber made from stainless steel, insulation with fiberglass or similar, external frame made from engine turned stainless steel, door with symmetrically located window.


  Skid resistance and friction tester

This method provides a measure of the skid resistance properties of a surface either in the field or in the laboratory. This method measures the skid resistance of a small area of a surface (approximately 0.01 m2) and this should be considered when deciding its applicability to a pavement surface which may have variable surface characteristics, e.g. block paving.


  Viscometer (tar and saybolt)

Used for determining the viscosity of cut back bitumen, road oil and the empirical measurement of Saybolt viscosity of petroleum product at specified temperatures between 70 and 210°F


  Water bath for penetration tests

Provides water at the required temperature (25 ± 0.1°C). The apparatus consists of a water bath fitted with heater, digital thermoregulator and recirculating pump.Supplied complete with dish, cooling coil (current water operated), rubber connecting hoses and couplings.

 
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