We have studied for the first time the taxonomic composition of filamentous fungi associated with the bivalve mollusks Crenomytilus grayanus (Bunker, 1853) and Modiolus modiolus (Linnaeus, 1758), collected in polluted biotopes of Ussuriiskii Bay (Peter the Great Bay, Sea of Japan). One hundred fifty-five strains of higher fungi were isolated, and 35 species of filamentous fungi were identified. Out of these, 28 species were anamorphous fungi of the genera Aspergillus (12), Penicillium (10), Acremonium (1), Alternaria (1), Aureobasidium (1), and Cladosporium (3) (Deuteromycota), and 7 were species of the genera Chaetomium (6) and Myxotrichum (1) (Ascomycota). Twenty-four species of filamentous fungi were isolated from the internal organs of C. grayanus : 8 from the muscles, 8 from the hepatopancreas, 6 from the female gonads, 4 from the mantle, 3 from the kidneys and male gonads, and 1 from the gills. Twenty-one species of filamentous fungi were isolated from the internal organs of Modiolus modiolus : 10 from the muscles, 6 from the hepatopancreas, 5 from the female gonads, 3 from the kidneys, 3 from the mantle, and 1 from the gills. The bulk of the isolated species of the genera Aspergillus, Penicillium, Cladosporium , and Chaetomium were pathogenic and toxigenic fungi.

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Abstract. New method of quality improvement of the polymer modified binder (PMB) was considered in the paper. Testify to the fact that PMB modified by nanoagent is less sensitive to aging, as a result of the processes of peptization asphaltene-resin complexes (ARC) in the structure of the modified binder and the crosslinking with the polymer matrix. It is demonstrated that the nanotubes, (SWCNT or MWCNT) using as a modifier, have effect of crosslinking agent and the inhibitor of the aging process of a PBB. The influence of nanomodified PBB on strength and deformation properties of asphalt concrete is researched. It is found that the application of modified binder in the asphalt concrete mixtures enhances the water resistance of asphalt concrete, heat resistance, and shear resistance.

Often, the quality of contemporary bitumen binders cannot meet the performance requirements for hot mixed asphalt (HMA) concrete intended for severe application conditions. Therefore, the companies involved in the road construction and HMA producers use various chemical admixtures and modifiers to enhance the characteristics of bitumen. These materials are capable to enhance the adhesion between the binder and aggregates, reduce water saturation, as well as increase water and freeze-thaw resistance of HMA. For example, water resistance is considered to be one of the controlling parameters for high-quality asphalt applications. The use of these admixtures has little effect on the rheological characteristics and the temperature range of the binders. As a result, in the regions with hot summers and hot climate zones asphalt pavements are subjected to significant permanent deformations such as rutting. In the regions with cold winters, asphalt pavements can develop a critical fragility resulting in the crack propagation and failure of asphalt pavement. This research reports on the use of nanomodified hybrid additive with zeolite-bearing tuffs used as a mineral filler to control the HMA performance. An effective technology that includes the modification of zeolite-bearing precursor and manufacturing of the hybridized material with nanocarbon was developed. This research demonstrates the effects of carbon nanomaterials on pore structure and surface morphology of the modified hybrid additive. Few methods of the additive incorporation into asphalt mix was proposed. The results of the reported study confirm an improvement of the strength and water resistance performance of asphalt with developed nanohybrid additive.

In work need of detailed studying of a water phase of a bituminous emulsion about concentration of emulsifier in its structure, and also compatibility with the concrete mineral material used in production is proved. It is offered to bring improvements in a technique of development of a compounding of a bituminous emulsion at a stage of studying and selection of a water phase.