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Pressure Ageing Vessel PAV 81-PV2600
Rp234.00
Pressure Ageing Vessel PAV
Brand/Supplied From : Controls – Italy
Standard : ASTM D6521; EN 14769; AASHTO R28
Description
The Pressure Ageing Vessel (PAV) 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 or 65 hours (selectable up to 99) to simulate the effect of long-term oxidative ageing.
The ageing of asphalt binders during service is affected by ambient temperature and by mixture-associated variables, such of component proportions in thhe mix, aggregate properties and many more. This conditioning process is intended to provide an evaluation of the relative resistance of asphalt binders to oxidative ageing at selected elevate temperatures and pressures. It is normally performed after an initial conditioning using a Rolling Thin Film Oven (RTFOT).
Residue from this conditioning practice may be used to estimate the physical and chemical properties of asphalt binders after several years of i-service ageing in the field and to compare these properties to pre-conditioning test results of the same binder.
Main Features
- Platinum RTD temperature internal measurement to +/- 0.1° C
- Freely selectable test temperatures from 80° to 120°C, PID controlled to +/- 0.5°C
- Efficient heating system allowing the test temperature to be achieved in one hour, exceeding the Standards’ specification
- Programmable pre-heating functions (limited to 60° C to avoid accidental burns during sample rack positioning) for time optimization
- Pressure monitored by transducer and controlled to 2.1 +/- 0.1 MPa
- User friendly software allows real time readout of vessel temperature and pressure
- 6″ colour touch screen reclinable display
- Temperature and pressure calibrations performable by the user
- CE and ASME certified pressure vessel
- Electrically locked top cover, to avoid direct exposure of the pressure vessel during the test
- Forced ventilation cooling system allowing quick cooling of sample rack to avoid accidental burn
- Over temperature limit switch
- Over pressure relief valve
Technical Specifications
- Working temperature range: 80 to 120° C
- Temperature measurement: Platinum RDT with +/- 0.1 resolution
- Testing time: up to 99 hours
- Power: 1000 W
- Dimensions, mm (l x w x h): 430 x 660 x 480
- Weight (approx.): 90 kg
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