화학공학소재연구정보센터
Chemistry and Technology of Fuels and Oils, Vol.53, No.6, 846-851, 2018
Technology of Producing Sulfur-Asphalt Binders for Road Construction
A technology has been developed for producing an asphalt binder for road construction based on oil distillation residues modified with elemental sulfur. A blend of asphalt base and elemental sulfur was exposed to the action of ultrasound with a vibratory power of 2.5 W/cm(2) and a frequency of 20 kHz at 160A degrees C. The blend was heated exclusively by acoustic vibration energy. Sulfur-asphalt samples conforming to the BND 130/200 brand were obtained. Energy consumption can be reduced and asphalt binder production process can be accelerated by ultrasonic blending.