Influence of Rejuvenator on the Properties of Bitumen and Asphalt Concrete

The article considers the influence of the domestic rejuvenator Lux «ЕD-L» on the properties of bitumen and asphalt concrete. The influence of the rejuvenator on the origin bitumen properties, on the properties of bitumen after RTFOT hardening, and on the rate of bitumen hardening is performed. It is shown that the properties of bitumen hardened by RTFOT method are completely restored to the level of bitumen before technological hardening under the influence of the rejuvenator. The high rate of the adsorption of additive by bitumen was proved with the evaluation of the bitumen adhesion to the mineral surface. An advantage of the rejuvenator Lux «ЕD-L» is a significant improvement in the adhesion properties of bitumen. Treatment of asphalt concrete mixtures conditioned according to the AASHTO R 30-02 method with the rejuvenator leads to the improvement of the quality indicators of asphalt concrete made on these mixtures.