Effect of Heat and Air on Asphalt – Rolling Thin-Film Oven Test

The Rolling Thin-Film Oven Test (RTFOT) is a standardized method used to measure the effect of heat and air on a moving film of semi-solid asphaltic materials. By simulating short-term aging during hot-mix asphalt production, this test evaluates changes in the properties of asphalt binders. The results help predict asphalt performance, durability, and resistance to hardening.

The procedure involves subjecting asphalt samples to controlled heating and airflow, followed by testing the selected physical properties before and after exposure.

LT/RT-255000-ASTM/M – Rolling Thin-Film Oven (ASTM D2872)

Designed in accordance with ASTM D2872, this RTFOT provides accurate and repeatable results:
• Fully stainless-steel construction for durability.
• Forced ventilation system for consistent heating.
• Aluminium carriage rotating at 15 rpm (circular and vertical) with eight glass container slots.
• Internal fan driven by a 1,725 rpm motor.
• Copper coil with nozzle for pre-heating air.
• Flowmeter with regulating valve.
• Digital PID thermoregulator with PT100A probe and over-temperature alarm.
• Double-wall locking door with toughened glass inspection window.
• Internal dimensions: 381 × 483 × 445 mm ± 13 mm.

LT/RT-255000-EN/M – Rolling Thin-Film Oven (EN 12607)

Built to comply with EN 12607, this RTFOT ensures precision testing under European standards:
• Stainless-steel construction with corrosion resistance.
• Forced ventilation for stable heating conditions.
• Aluminium carriage rotating at 15 rpm with eight glass container slots.
• Internal fan controlled by a 1,725 rpm motor.
• Copper coil with nozzle for pre-heating airflow.
• Flowmeter with regulating valve for accuracy.
• Digital PID thermoregulator with PT100A probe and alarm.
• Double-wall locking door with toughened glass window.
• Internal dimensions: 340 × 405 × 445 mm ± 15 mm.

Power Supply: 220 Vac, 50/60 Hz.

These RTFOT ovens are essential for asphalt binder quality control, ensuring compliance with ASTM D2872 and EN 12607 standards.