Keyword: «oils»

EXPENSES OF THE MINISTRY OF DEFENSE OF THE RUSSIAN FEDERATION FOR THE OPERATION OF MI-24 HELICOPTERS IN THE AVIATION UNITS OF THE VKS

Authors:

Anatolii Trofimec,

Vladimir Orlov

The article is devoted to current issues on costs during the operation of the Mi-24 helicopters in the aviation union of the Ministry of Civil Procedure of the Russian Federation.

Keywords: aircraft, resource, depreciation, flight and engineering personnel, lubricants, russian aerospace forces, oils, per, b-3v, lz-240, mi-24 helicopter, rosvertol, hangar tec

THEORIES ABOUT THE STRUCTURE OF BITUMEN

Authors:

Nikolai Igorevich Shestakov,

Maria Evgenievna Bokova,

Anastasia Mikhailovna Efimova

The article discusses modern ideas about the structure of bitumen as an organic binding material. The main theories of bitumen structure are analyzed. Various classifications of bitumen structural types, their properties, and features are described. Keywords: asphaltenes, bitumen, oils, resins, structure.

Keywords: bitumen, oils, asphaltenes, resins, structure.