bitumen R115/15
description Oxidized bitumen with the grade of R115/15 (also known as blown asphalt R115/15 and blown bitumen R115/15 ) is made from petroleum bitumen through the process of heating. Typically, bitumen 60/70 grade is blown by hot air at a temperature of 230°C, resulting in a material of a much higher penetration index. Physically, oxidized […]
