Abstrait

Investigation of Polimeric-Bitumen Binder Subject to Climatic Service Conditions

Saltanat Zh. Kenbeilova, Erengaip M. Shaihutdinov, Galina I. Boiko, Nina P. Lyubchenko and Sergey A. Dergunov

Oxidized bitumen was modified with waste of carbon-chain polymer production. On Superpave specifications the physic-mechanical properties of modified bitumen were subject to investigation under the climatic conditions of the Republic of Kazakhstan. The behavior of BND60/90 bitumen and polymeric-bitumen binders has been studied at high temperatures on a dynamic shear rheometer (DSR) in the range of temperatures from +46°C to +88°C.

On a bending beam rheometer (BBR) in the range of temperatures from -24°C to -34.9°C a comparative study of low-temperature behavior of bitumen BND 60/90 and polimeric-bitumen binders BPV/OAPP-L3, BPV/OAPP-L4, GSV/OAPP -L5 after consecutive accelerated aging of samples in the vertical rotary kiln by RTFOT method and long-term aging in a pressure vessel and heat by PAV method. According the results of the Superpave specifications test samples correspond to the climatic conditions in most parts of the Republic of Kazakhstan.