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Koehler K88100 Pressure Aging Vessel
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31 Oct 2019
United States
1 unit
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Specification of

Description

The Pressure Aging Vessel (PAV) is used to simulate in service oxidative aging of asphalt binder according to procedures developed by the Strategic Highway Research Program (SHRP). The K88100 is fully compliant with the most recent ASTM and AASHTO standards for these tests. The complete PAV system consists of an ASME-code stainless steel pressure vessel in a stainless steel cabinet with encased band heaters, a precision sample holder for simultaneous testing of ten specimens, a set of ten TFOT specimen trays, a pressure controller, temperature controller, pressure and temperature measurement devices, temperature recorder, and a specimen loading and unloading tool. The K88100 PAV takes the hassle out of running and documenting asphalt binder aging operations. Three easy, non-complicated steps produce accurate and reliable results. Just press the "heat" button, inset specimens when prompted and press the "Age" button and let the PAV do the rest. Custom status screens guide the user step-by-step through the entire process. 

Test Method

For accelerated aging (oxidation) of asphalt binders by means of pressurized air and elevated temperature. This is intended to simulate the type of changes which occur in asphalt binders during in-service oxidative aging but may not accurately simulate the relative rates of aging. It is intended for use with residue from Test Method D2872 (RTFOT) which is designed to simulate plant aging.

Features

  • Conforms to ASTM D6521, AASHTO R28, EN14769

Specification

Conforms to the specifications of: 

ASTM D6521; AASHTO R28; EN14769

Operating Pressure: 2.10 ± 0.05 MPa (304 psi)

Temperature Range: 90°C to 110°C (194°F to 230°F)

Temperature Control Resolution: ± 0.1°C

Test Temperature Uniformity: ± 0.5°C

Time to Set point: 3 hours from ambient

Return to Set point: 120 min. after preheating and lading of specimens

Pressure Vessel: ASME code section VIII, division 1; 1992 A 93

Maximum Pressure: 325 psi (2.24 MPa) at 120°C (250°F)

Pressure Safety Release: 325 psi (2.24 MPa)

Additional Accessories

  • K88100-1 UPS Battery Backup System
  • K88100-2 PAV Verification Kit
  • K88100-3 PAV O-Ring
  • K88100-4 CGA Adapter
  • K88100-5 High Pressure Hose
  • K88100-6 Specimen Pans Set (Pk / 10)

 

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