RTFOT | Rolling Thin Film Oven Test


The method measures the combined effects of heat and air on a thin film of bitumen or bituminous binder in permanent renewal. It simulates the hardening that a binder undergoes during mixing in a mixing plant.

The effects of heat and air are determined from the variation in mass of the sample (expressed as a percentage, or from the evolution of the characteristics of the binder such as penetrability (EN 1426), the ball softening point -ring (EN 1427) or dynamic viscosity (EN 12596), measured before and after passing through the oven.

This test is fundamental in checking the compliance of pure bitumens with standard EN 12591.


RTFOT OVEN

F044.107.6071

RTFOT VIALAB Black edition MAJ
RTFOT VIALAB Black edition MAJ interieur
RTFOT 2020 EN 12607-1 intérieur allumé

Made in France

Determination of resistance to hardening under the effect of heat and air according to EN 12607-1


Performances

  • Ambient temperature + 10 ° C to 200 ° C
  • Test reference temperature 163 ° C +/- 1 ° C (according to FDX 15-140)
  • Display accuracy of the electronic controller 0.1 ° C
  • Regulation stability over time: ± 0.2 ° C
  • Rotation of the rotating floor
    → Geared motor with frequency converter to guarantee the rotation speed of 15 rpm
  • Air squirrel cage type
    → Geared motor with frequency converter to guarantee the mixing speed of the
    standard
  • Feet adjustable in height to ensure the flatness of the support
  • Warning buzzer at end of cycle


Specifications

  • Painted steel outer casing, baked epoxy paint
  • 430 stainless steel inner box: width 405 mm, depth 445 mm
  • Height 340 mm with clip for thermometer
  • W6100+ Temperature controller
  • Dual display: setpoint and measured temperature
  • 1 porthole centered L320 x H215 on the door
  • 1 Hot air injection line via copper coil Ø8mm L ~ 7.6m
  • Coil with Ø1mm nozzle blowing in the axis of the vial in the low position
  • 1 Flow meter with setting range from 1 to 10 L / min
  • 1 Ø8 push-in instant rear connection for connection to the compressed air circuit
  • Make sure you have an air treatment system:
    Dried, deoiled, dusted and pressure regulated air
  • 1 Ø300 mm rotating floor motorized and arranged vertically
  • 8 Locations for vials with spring clips
  • Insulated door, stainless steel door, silicone seal in a groove
  • 1 automatic safety catch for closing
  • Door closing on the left, hinges on the right, perfect sealing


Accessories to be ordered separately

  • 8 x glass vials with convex or concave opening
  • 1 x ASTM 13C thermometer, perfect alcohol equivalent

Accessories & Options

Fiole convexe RTFOT

GLASS VIALS | CONVEX | EN 12607-1

Specifications

Vial with convex opening recommended by standard EN 12607-1 for easy recovery of the binder after testing.

  • Outside Ø 64 ± 1.2 mm,
  • Ø opening 32 ± 2 mm,
  • Height 140 ± 1.2 mm,
  • Glass thickness: 2.4 ± 0.3 mm

F044.107.6072

GLASS VIALS | CONCAVE | EN 12607-1

Specifications

Vial with concave opening for standard EN 12607-1.

  • Outside Ø 64 ± 1.2 mm
  • Ø opening 32 ± 2 mm
  • Height 140 ± 1.2 mm
  • Glass thickness: 2.4 ± 0.3 mm

F044.107.6073

Thermomètre

THERMOMETER | ASTM 13C

Specifications

  • Alcohol equivalent
  • Measuring range 155 to 170°C : 0.5°C
  • Length: 165mm
  • Full immersion

F024.245.0013C

Gant anti-chaleur

ANTI-HEAT GLOVES | 250 ° C

Specifications

  • Cow split leather
  • Fully lined fleece palm
  • 35 cm cuff fully lined with cotton canvas
  • Reinforced seams

F003.505.0150