HEAT TREATMENTS OF ASPHALTIC MATERIALS
MODEL REF P875 & P876

• The oven is constructed according to ASTM E-145 type 1, grade B specifications including stainless steel double walls, glass fiber insulated, with viewing window consisting of two sheets of heat resistant glass separated by an air layer.
• Vents at top and openings at the bottom provide the required ventilation.
• It is equipped with a revolving aluminum shelf, 250 mm diameter, driven by powerful motor at an adjustable speed of 5 to 6 rpm.
• Upper panel shows electronic temperature controller with digital display and setting.
• The whole is protected with separate over-temperature cutoff connected to the circuit breaker. The apparatus comes complete with a set of aluminum sample containers and ASTM 13C thermometer.

A unique feature of the oven is:

The type J thermocouple that is the sensor for the electronic controller is fixed on the rotating shelf and moves with it. This is the same as the ASTM 13c control thermometer also attached to the shelf and described in the standard method. The benefit is a precise control of the temperature of the sample containers positioned on the shelf and a greater reproducibility between tests

TWO MODELS ARE AVAILABLE:

• P875 Revolving shelf oven ASTM D6 alone.
• P876 Revolving shelf oven ASTM D1754 alone.