The article is presenting a modification of bituminous binder with ecological epoxidized rapeseed oil (BERO) in the presence of the initiator (hardener). Adipic acid (AA), maleic anhydride (MA) and polyethylene polyamine (PEPA) were used as the initiators. The effect of modification temperature and, as well as initiator nature, on the bitumen properties was determined. Bitumen modified with BERO was evaluated by the following indicators: softening temperature, penetration, ductility, and adhesion to the glass. The optimal initiator : rapeseed oil epoxide (ERO) : bitumen ratio was found to be 0.15:3:100; it allows obtaining bitumen with improved properties, in particular, adhesive properties increase by 2‒3 times depending on the nature and content of the initiator. To improve the formula composite and evaluation of asphalt mixtures the additional researches will be conducted.

A new mechanism for the reaction of direct (additive) chlorination of ethylene with chlorine from the formation of 1,2-dichloroethane in the presence of FeCl 3 catalyst promoted by NaCl has been proposed. It was found that the rate depends on the active phase concentration of the catalyst and the promoter, as well as the formation of the Na[Fe(C 2 H 4 Cl) 4 ] complex, which is a surface intermediate of the reaction. The heterogeneous-homogeneous mechanism of the process, according to which the reaction begins on the surface of the catalytic complex and lasts in a solution of dichloroethane, has been substantiated. A stabilizer of the catalyst complexthe sodium salt of perforated sulfonic acid, which accelerates the process of dissolution of sodium chloride,increases the selectivity of 1,2-dichloroethane formation and reduces the number of by-products of trichloroethane and other chlorine derivatives.

Article contains results of oxidation of different classes of hydrocarbons (alicyclic, alkylaromatic) in the presence of catalytic systems containing salt of variable valence metal and organic additive of different nature (perfluorooxasulphonates, crown-ethers, polyglycols). It was found that the influence of investigated catalytic systems depends on the nature of the hydrocarbon and the nature of the additive. The main areas of influence of organic additives on the rate and selectivity of oxidation of hydrocarbons were considered and the most probable ones were proved.

The possibility of using maleic anhydride as a foaming agent to produce foamed bitumen was investigated. The optimal content of maleic anhydride was determined according to the indicators of the growth of the binder volume and the half-life of the foam. With use of maleic anhydride as a foaming agent, foamed bitumen was obtained, and later was used to obtain two samples of stone mastic asphalt, which differed in mixing and compaction temperatures of stone mastic asphalt mix. For comparison, the composition of stone mastic asphalt mix was designed using non-foamed (BND 70/100 and BND 70/100 modified with maleic anhydride) and foamed bitumen (BND 70/100 foamed with maleic anhydride at two different temperatures). Stone mastic asphalt specimens were formed and tested

The properties of fine-grained asphalt concrete and its modified by bio based epoxy rape oil (BERO) form were studied. Rapeseed oil epoxide (ROE) obtained from renewable and ecological raw materials, rapeseed oil in a composition with initiators (hardeners) was used as a modifier. It was found that the introduction of BERO in the amount of 3 % of the mass. allows to increase indicators of limit of durability of asphalt concrete at compression at a temperature of 20 °C and 50 °C. The efficiency of BERO composition and its positive effect on physical and mechanical prop- erties of asphalt concrete is established.